Updated on 2023/10/21

写真a

 
Hariki Atsushi
 
Organization
Graduate School of Engineering Division of Physics and Electronics Associate Professor
School of Engineering Department of Physics and Electronics
Title
Associate Professor
Affiliation
Institute of Engineering

Position

  • Graduate School of Engineering Division of Physics and Electronics 

    Associate Professor  2023.04 - Now

  • Graduate School of Engineering Division of Physics and Electronics 

    Assistant Professor  2022.04 - 2023.03

  • School of Engineering Department of Physics and Electronics 

    Associate Professor  2023.04 - Now

  • School of Engineering Department of Physics and Electronics 

    Assistant Professor  2022.04 - 2023.03

Degree

  • 博士(工学) ( Osaka Prefecture University )

  • 修士(工学) ( Osaka Prefecture University )

  • 学士(工学) ( Osaka Prefecture University )

Research Areas

  • Natural Science / Magnetism, superconductivity and strongly correlated systems

  • Natural Science / Semiconductors, optical properties of condensed matter and atomic physics

  • Nanotechnology/Materials / Optical engineering and photon science

Research Interests

  • 強相関電子系、遷移金属酸化物、希土類化合物、ペロブスカイト化合物

  • 第一原理計算、量子多体計算、超伝導、磁性、巨大磁気抵抗、金属絶縁体転移、X線光電子分光、X線吸収分光、X線発光分光

Professional Memberships

  • 日本物理学会

    2021.01 - Now   Domestic

Job Career (off-campus)

  • Osaka Prefecture University

    2020.04 - Now

  • TU Wien   Institute of Solid State Physics

    2016.11 - 2020.03

  • Czech Academy of Sciences

    2016.02 - 2016.10

Papers

  • Modulation-doping a correlated electron insulator. Reviewed International coauthorship

    Mondal D, Mahapatra SR, Derrico AM, Rai RK, Paudel JR, Schlueter C, Gloskovskii A, Banerjee R, Hariki A, DeGroot FMF, Sarma DD, Narayan A, Nukala P, Gray AX, Aetukuri NPB

    Nature communications   14 ( 1 )   6210   2023.10

  • Observation of temperature-dependent Fermi surface evolution at the valence transition of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>YbInCu</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math> Reviewed

    Hiroaki Anzai, Atsushi Hariki, Hitoshi Sato, Masashi Arita, Tao Zhuang, Koichi Hiraoka

    Physical Review B   108 ( 7 )   2023.08( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/physrevb.108.075116

    Other URL: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.108.075116/fulltext

  • Electronic structure of ACu3Co4 O12 (A = Y, La, Bi): Synthesis, characterization, core-level spectroscopies, high-pressure application, and ab initio calculation Reviewed International coauthorship

    Yuta Kato, Meng Jie Huang, Keito Kasebayashi, Takateru Kawakami, Tatsuya Yamaguchi, Jens Buck, Ru Pan Wang, Matthias Kalläne, Kai Rossnagel, Peter Nagel, Stefan Schuppler, Yoshihiro Takahashi, Takao Odake, Shogo Kawaguchi, Ikuya Yamada, Atsushi Hariki

    Physical Review Materials   7 ( 7 )   2023.07( ISSN:2475-9953

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    Authorship:Last author, Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    We present a comprehensive experimental and computational study on A-site ordered perovskite oxides YCu3Co4O12, LaCu3Co4O12, and BiCu3Co4O12 including synthesis, transport, and magnetic characterization, high-pressure application, K- and L-edge x-ray absorption spectroscopy (XAS), Co 2p core-level x-ray photoemission spectroscopy and density-functional theory (DFT) calculations combined with dynamical mean-field theory (DMFT) and +U scheme. An insulating behavior with a valence state of A(3+) Cu-3(similar to 3+) Co-4(similar to 3+) O-12(2-) is found for the three compounds at ambient and high-pressure conditions (up to similar to 55 GPa). A DFT calculation for YCu3Co4O12 uncovers the energetics of the Cu-O and Co-O bonding formation and crystal-field splitting, leading to a narrow-gap electronic structure with a hybrid orbital and element character near the Fermi energy. The stable low-spin configuration of the Co ion is studied in comparison to a canonical perovskite cobaltite LaCoO3. A DFT+ DMFT analysis of the Cu spin-correlation function indicates that the Zhang-Rice singlet description for the CuO4 plaquette is valid, while a hybridization with the Co 3d orbitals also contributes to the Cu spin screening. The presence of the hybridization between the Co and Cu orbitals is shown by the DFT + DMFT analysis for the Co L-2,L-3 XAS experimental spectra that exhibit unusual broad line shape. An increasing behavior of electrical resistance at elevated pressures is observed in all compounds and is interpreted based on a DFT + U simulation.

    DOI: 10.1103/PhysRevMaterials.7.073401

  • Single- and Multimagnon Dynamics in Antiferromagnetic α−Fe2O3 Thin Films Reviewed International coauthorship

    Jiemin Li, Yanhong Gu, Yoshihiro Takahashi, Keisuke Higashi, Taehun Kim, Yang Cheng, Fengyuan Yang, Jan Kuneš, Jonathan Pelliciari, Atsushi Hariki, Valentina Bisogni

    Physical Review X   13 ( 1 )   2023.02

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/PhysRevX.13.011012

  • High-Pressure Synthesis of a Novel Quadruple Perovskite Oxide AgCu3Cr4O12 Reviewed

    Kato Yuta, Furo Mizuki, Yamaguchi Tatsuya, Hariki Atsushi, Yamada Ikuya

    Materials Transactions   64 ( 9 )   2088 - 2092   2023( ISSN:13459678

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    <p>A novel complex transition metal oxide AgCu<sub>3</sub>Cr<sub>4</sub>O<sub>12</sub> has been obtained using high-pressure and high-temperature conditions of 12 GPa and 1223 K. The crystal structure is refined to be a cubic <i>AA'</i><sub>3</sub><i>B</i><sub>4</sub>O<sub>12</sub>-type quadruple perovskite structure based on the Rietveld refinement of the synchrotron X-ray powder diffraction data. The density-functional theory calculation obtains a metallic band structure. The valence state is estimated to be Ag<sup>~1.3+</sup>Cu<sup>~2.2+</sup><sub>3</sub>Cr<sup>4+</sup><sub>4</sub>O<sub>12</sub> by bond valence sum and X-ray absorption spectroscopy analyses. The valence state on <i>A</i>Cu<sub>3</sub>Cr<sub>4</sub>O<sub>12</sub> series (<i>A</i> = Ag, Ca, La, Ce) sequentially transforms from Ag<sup>~1.3+</sup>Cu<sup>~2.2+</sup><sub>3</sub>Cr<sup>4+</sup><sub>4</sub>O<sub>12</sub>, Ca<sup>2+</sup>Cu<sup>2+</sup><sub>3</sub>Cr<sup>4+</sup><sub>4</sub>O<sub>12</sub>, La<sup>3+</sup>Cu<sup>(2+</sup><i><sup>δ</sup></i><sup>)+</sup><sub>3</sub>Cr<sup>(3.75–0.75</sup><i><sup>δ</sup></i><sup>)+</sup><sub>4</sub>O<sub>12</sub>, to Ce<sup>4+</sup>Cu<sup>2+</sup><sub>3</sub>Cr<sup>3.5+</sup><sub>4</sub>O<sub>12</sub>, where the electrons are doped into the <i>A'</i>-site (Cu<sup>~2.2+</sup> → Cu<sup>2+</sup>), followed by predominant doping into the <i>B</i>-site (Cr<sup>4+</sup> → Cr<sup>(3.75–0.75</sup><i><sup>δ</sup></i><sup>)+</sup> → Cr<sup>3.5+</sup>). Their electron doping sequence is distinguished from those reported in other quadruple perovskite oxides, proposing characteristic features of the <i>A</i>Cu<sub>3</sub>Cr<sub>4</sub>O<sub>12</sub> family.</p>

    DOI: 10.2320/matertrans.mt-mg2022016

  • Kondo quasiparticle dynamics observed by resonant inelastic x-ray scattering Reviewed International coauthorship

    M. C. Rahn, K. Kummer, A. Hariki, K. H. Ahn, J. Kuneš, A. Amorese, J. D. Denlinger, D. H. Lu, M. Hashimoto, E. Rienks, M. Valvidares, F. Haslbeck, D. D. Byler, K. J. McClellan, E. D. Bauer, J. X. Zhu, C. H. Booth, A. D. Christianson, J. M. Lawrence, F. Ronning, M. Janoschek

    Nature Communications   13 ( 1 )   2022.12

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    Publishing type:Research paper (scientific journal)  

    Effective models focused on pertinent low-energy degrees of freedom have substantially contributed to our qualitative understanding of quantum materials. An iconic example, the Kondo model, was key to demonstrating that the rich phase diagrams of correlated metals originate from the interplay of localized and itinerant electrons. Modern electronic structure calculations suggest that to achieve quantitative material-specific models, accurate consideration of the crystal field and spin-orbit interactions is imperative. This poses the question of how local high-energy degrees of freedom become incorporated into a collective electronic state. Here, we use resonant inelastic x-ray scattering (RIXS) on CePd3 to clarify the fate of all relevant energy scales. We find that even spin-orbit excited states acquire pronounced momentum-dependence at low temperature—the telltale sign of hybridization with the underlying metallic state. Our results demonstrate how localized electronic degrees of freedom endow correlated metals with new properties, which is critical for a microscopic understanding of superconducting, electronic nematic, and topological states.

    DOI: 10.1038/s41467-022-33468-6

    PubMed

  • Satellites in the Ti 1s core level spectra of SrTiO3 and TiO2 Reviewed International coauthorship

    Atsushi Hariki, Keisuke Higashi, Tatsuya Yamaguchi, Jiebin Li, Curran Kalha, Manfred Mascheck, Susanna K. Eriksson, Tomas Wiell, Frank M. F. de Groot, Anna Regoutz

    Physical Review B   106 ( 20 )   2022.11( ISSN:24699950

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.106.205138

    Other URL: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.106.205138/fulltext

  • Charge-transfer effect in Fe 2p core-level x-ray photoemission spectra of trivalent Fe oxides: LDA+DMFT study. Reviewed

    Higashi K, Yamaguchi T, Takahashi Y, Hariki A

    Journal of physics: Condensed matter   2022.07( ISSN:0953-8984

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    Authorship:Last author, Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1088/1361-648X/ac7f18

    PubMed

  • Analyzing the Local Electronic Structure of Co3O4 Using 2p3d Resonant Inelastic X-ray Scattering. Reviewed International coauthorship

    Wang RP, Huang MJ, Hariki A, Okamoto J, Huang HY, Singh A, Huang DJ, Nagel P, Schuppler S, Haarman T, Liu B, de Groot FMF

    The journal of physical chemistry C   126 ( 20 )   8752 - 8759   2022.05( ISSN:1932-7447

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1021/acs.jpcc.2c01521

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  • CaCu3Ru4O12 : A High-Kondo-Temperature Transition-Metal Oxide Reviewed International coauthorship

    D. Takegami, C.-Y. Kuo, K. Kasebayashi, J.-G. Kim, C. F. Chang, C. E. Liu, C. N. Wu, D. Kasinathan, S. G. Altendorf, K. Hoefer, F. Meneghin, A. Marino, Y. F. Liao, K. D. Tsuei, C. T. Chen, K.-T. Ko, A. Günther, S. G. Ebbinghaus, J. W. Seo, D. H. Lee, G. Ryu, A. C. Komarek, S. Sugano, Y. Shimakawa, A. Tanaka, T. Mizokawa, J. Kuneš, L. H. Tjeng, A. Hariki

    Physical Review X   12 ( 1 )   2022.01( ISSN:2160-3308

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevx.12.011017

  • Valence skipping, internal doping, and site-selective Mott transition in PbCoO3 under pressure Reviewed International coauthorship

    Atsushi Hariki, Kyo-Hoon Ahn, Jan Kunes

    PHYSICAL REVIEW B   104 ( 23 )   2021.12( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    We present a computational study of PbCoO3 at ambient and elevated pressure. We employ the static and dynamic treatment of local correlation in the form of density functional theory + U (DFT+U) and + dynamical mean-field theory (DFT+DMFT). Our results capture the experimentally observed crystal structures and identify the unsaturated Pb 6s - O 2p bonds as the driving force beyond the complex physics of PbCoO3. We provide a geometrical analysis of the structural distortions and we discuss their implications, in particular the internal doping, which triggers a transition between phases with and without local moments and a site-selective Mott transition in the low-pressure phase.

    DOI: 10.1103/PhysRevB.104.235101

  • Core-Level X-Ray Spectroscopy of Infinite-Layer Nickelate: LDA+DMFT Study Reviewed International coauthorship

    Keisuke Higashi, Mathias Winder, Jan Kuneš, Atsushi Hariki

    Physical Review X   11 ( 4 )   2021.10

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/PhysRevX.11.041009

  • 2p x-ray absorption spectroscopy of 3d transition metal systems Reviewed International coauthorship

    F. M. F. de Groot, H. Elnaggar, F. Frati, R.-P. Wang, M. U. Delgado-Jaime, M. van Veenendaal, J. Fernandez-Rodriguez, R. Green, G. van der Laan, Y. Kvashnin, A. Hariki, H. Ikeno, H. Ramanantoanina, C. Daul, B. Delley, M. Odelius, M. Lundberg, O. Kuhn, S. Bokarev, E. Shirley, J. Vinson, K. Gilmore, M. Stener, G. Fronzoni, P. Decleva, P. Kruger, M. Retegan, Y. Joly, C. Vorwerk, C. Draxl, J. Rehr, A. Tanaka

    Journal of Electron Spectroscopy and Related Phenomena   249   2021.05

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work   International / domestic magazine:International journal  

  • Hard x-ray photoemission study on strain effect in LaNiO3 thin films Reviewed

    K. Yamagami, K. Ikeda, A. Hariki, Y. Zhang, A. Yasui, Y. Takagi, Y. Hotta, T. Katase, T. Kamiya, H. Wadati

    Applied Physics Letters   118 ( 16 )   161601 - 161601   2021.04( ISSN:0003-6951

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1063/5.0044047

  • Electronic and crystal structures of LnFeAsO1-xHx (Ln= La, Sm) studied by x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction (part I: carrier-doping dependence). Reviewed

    Yoshiya Yamamoto, Hitoshi Yamaoka, Takayuki Uozumi, Atsushi Hariki, Seiichiro Onari, Jun-ichi Yamaura, Kenji Ishii, Takuma Kawai, Masahiro Yoshida, Munetaka Taguchi, Kensuke Kobayashi, Jung-Fu Lin, Nozomu Hiraoka, Hirofumi Ishii, K D Tsuei, Hiroshi Okanishi, Soshi Iimura, Satoru Matsuishi, Hideo Hosono, Jun'ichiro Mizuki

    Journal of Physics: Condensed Matter   33 ( 25 )   2021.04( ISSN:0953-8984

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    A carrier doping by a hydrogen substitution in LaFeAsO1-x H x is known to cause two superconducting (SC) domes with the magnetic order at both end sides of the doping. In contrast, SmFeAsO1-x H x has a similar phase diagram but shows single SC dome. Here, we investigated the electronic and crystal structures for iron oxynitride LnFeAsO1-x H x (Ln = La, Sm) with the range of x = 0-0.5 by using x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction. For both compounds, we observed that the pre-edge peaks of x-ray absorption spectra near the Fe-K edge were reduced in intensity on doping. The character arises from the weaker As-Fe hybridization with the longer As-Fe distance in the higher doped region. We can reproduce the spectra near the Fe-K edge according to the Anderson impurity model with realistic valence structures using the local-density approximation (LDA) plus dynamical mean-field theory (DMFT). For Ln = Sm, the integrated-absolute difference (IAD) analysis from x-ray Fe-Kβ emission spectra increases significantly. This is attributed to the enhancement of magnetic moment of Fe 3d electrons stemming from the localized picture in the higher doped region. A theoretical simulation implementing the self-consistent vertex-correction method reveals that the single dome superconducting phase for Ln = Sm arises from a better nesting condition in comparison with Ln = La.

    DOI: 10.1088/1361-648x/abf9b9

    PubMed

  • Electronic and crystal structures of LnFeAsO1-xHx (Ln= La, Sm) studied by x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction: II pressure dependence. Reviewed

    Yoshiya Yamamoto, Hitoshi Yamaoka, Takuma Kawai, Masahiro Yoshida, Jun-ichi Yamaura, Kenji Ishii, Seiichiro Onari, Takayuki Uozumi, Atsushi Hariki, Munetaka Taguchi, Kensuke Kobayashi, Jung-Fu Lin, Nozomu Hiraoka, Hirofumi Ishii, K D Tsuei, Hiroshi Okanishi, Soshi Iimura, Satoru Matsuishi, Hideo Hosono, Jun'ichiro Mizuki

    Journal of Physics: Condensed Matter   33 ( 25 )   2021.04( ISSN:0953-8984

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    We examine electronic and crystal structures of iron-based superconductors LnFeAsO1-x H x (Ln = La, Sm) under pressure by means of x-ray absorption spectroscopy (XAS), x-ray emission spectroscopy (XES), and x-ray diffraction. In LaFeAsO the pre-edge peak on high-resolution XAS at the Fe-K absorption edge gains in intensity on the application of pressure up to 5.7 GPa and it saturates in the higher pressure region. We found integrated-absolute difference values on XES for Ln = La, corresponding to a spin state, decline on the application of pressure, and then it is minimized when the T c approaches the maximum at around 5 GPa. In contrast, such the optimum value was not detected for Ln = Sm. We reveal that the superconductivity is closely related to the lower spin state for Ln = La unlike Sm case. We observed that As height from the Fe basal plane and As-Fe-As angle on the FeAs4 tetrahedron for Ln = La deviate from the optimum values of the regular tetrahedron in superconducting (SC) phase, which has been widely accepted structural guide to SC thus far. In contrast, the structural parameters were held near the optimum values up to ∼15 GPa for Ln = Sm.

    DOI: 10.1088/1361-648x/abfaf4

    PubMed

  • Metamagnetic Behavior in a Quadruple Perovskite Oxide Reviewed

    Yuichi Okazaki, Yuta Kato, Yuta Kizawa, Seiji Oda, Kai Uemura, Takuya Nishio, Fuminari Fujii, Shintaro Fujinari, Masaya Kinoshita, Takao Odake, Hayato Togano, Takashi Kamegawa, Shogo Kawaguchi, Hajime Yamamoto, Hidekazu Ikeno, Shunsuke Yagi, Kouhei Wada, Kyo-Hoon Ahn, Atsushi Hariki, Ikuya Yamada

    Inorganic Chemistry   60 ( 10 )   7023 - 7030   2021.04( ISSN:0020-1669

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    A cubic quadruple perovskite oxide CeMn3Cr4O12 has been synthesized under high-pressure and high-temperature conditions of 8 GPa and 1273 K. The X-ray absorption spectroscopy reveals that the Ce ions are in a trivalent state, as represented by the ionic model of Ce3+Mn3+3Cr3+4O12. The magnetic study demonstrates three independent antiferromagnetic transitions attributed to Ce (∼10 K), Mn (46 K), and Cr (133 K) ions. Furthermore, a magnetic field-induced antiferromagnetic-to-ferromagnetic (metamagnetic) transition of Ce3+ 4f moments is observed at low temperatures below 20 K, exhibiting a rare example of metamagnetism in the Ce3+-oxides. This finding represents that the 3d-electron magnetic sublattices play a role in the metamagnetism of 4f-electron magnetic moments, demonstrating a new aspect of the 3d-4f complex electron systems.

    DOI: 10.1021/acs.inorgchem.0c03432

    PubMed

  • X-ray spectroscopy of the rare-earth nickelate LuNiO3 : LDA+DMFT study Reviewed International coauthorship

    Mathias Winder, Atsushi Hariki, Jan Kuneš

    Physical Review B   102 ( 8 )   2020.08( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/PhysRevB.102.085155

  • Damping of spinful excitons in LaCoO3 by thermal fluctuations: Theory and experiment Reviewed International coauthorship

    Atsushi Hariki, Ru-Pan Wang, Andrii Sotnikov, Keisuke Tomiyasu, Davide Betto, Nicholas B. Brookes, Yohei Uemura, Mahnaz Ghiasi, Frank M. F. de Groot, Jan Kuneš

    Physical Review B   101 ( 24 )   2020.06( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/PhysRevB.101.245162

  • A Sequential Electron Doping for Quadruple Perovskite Oxides ACu3Co4O12 (A = Ca, Y, Ce). Reviewed

    Ikuya Yamada, Takao Odake, Atsushi Tanaka, Yuichi Okazaki, Fumito Toda, Yuta Ishii, Toshifumi Taniguchi, Shogo Kawaguchi, Atsushi Hariki

    Inorganic Chemistry   59 ( 13 )   8699 - 8706   2020.06( ISSN:0020-1669

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    A novel quadruple perovskite oxide CeCu3Co4O12 has been synthesized in high-pressure and high-temperature conditions of 12 GPa and 1273 K. Rietveld refinement of the synchrotron X-ray powder diffraction pattern reveals that this oxide crystallizes in a cubic quadruple perovskite structure with the 1:3-type ordering of Ce and Cu ions at the A-site. X-ray absorption spectroscopy analysis demonstrates the valence-state transitions in the ACu3Co4O12 series (A = Ca, Y, Ce) from Ca2+Cu3+3Co3.25+4O12 to Y3+Cu3+3Co3+4O12 to Ce4+Cu2.67+3Co3+4O12, where the electrons are doped in the order from B-site (Co3.25+ → Co3+) to A′-site (Cu3+ → Cu2.67+). This electron-doping sequence is in stark contrast to the typical B-site electron doping for simple ABO3-type perovskite and quadruple perovskites CaCu3B4O12 (B = V, Cr, Mn), further differing from the monotonical A′-site electron doping for Na1-xLaxMn3Ti4O12 and A′- and B-site electron doping for AMn3V4O12 (A = Na, Ca, La). The differences in the electron-doping sequences are interpreted by rigid-band models, proposing a wide variety of electronic states for the complex transition-metal oxides containing the multiple valence-variable ions.

    DOI: 10.1021/acs.inorgchem.0c00184

    PubMed

  • LDA+DMFTapproach to resonant inelastic x-ray scattering in correlated materials Reviewed International coauthorship

    Atsushi Hariki, Mathias Winder, Takayuki Uozumi, Jan Kuneš

    Physical Review B   101 ( 11 )   2020.03( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/PhysRevB.101.115130

  • Charge-transfer effect in hard x-ray 1s and 2p photoemission spectra: LDA+DMFT and cluster-model analysis Reviewed International coauthorship

    Mahnaz Ghiasi, Atsushi Hariki, Mathias Winder, Jan Kuneš, Anna Regoutz, Tien-Lin Lee, Yongfeng Hu, Jean-Pascal Rueff, Frank M. F. de Groot

    Physical Review B   100 ( 7 )   2019.08( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.100.075146

  • Antiferromagnetism in RuO2 as d-wave Pomeranchuk instability Reviewed International coauthorship

    Kyo-Hoon Ahn, Atsushi Hariki, Kwan-Woo Lee, Jan Kuneš

    Physical Review B   99 ( 18 )   2019.05( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.99.184432

  • Pressure-induced spin-state ordering in Sr2CoO3F Reviewed International coauthorship

    Juan Fernández Afonso, Andrii Sotnikov, Atsushi Hariki, Jan Kuneš

    Physical Review B   99 ( 20 )   2019.05( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.99.205118

  • Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study Reviewed International coauthorship

    D. Geffroy, J. Kaufmann, A. Hariki, P. Gunacker, A. Hausoel, J. Kuneš

    Physical Review Letters   122 ( 12 )   2019.03( ISSN:0031-9007

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevlett.122.127601

  • Continuum Charge Excitations in High-Valence Transition-Metal Oxides Revealed by Resonant Inelastic X-Ray Scattering Reviewed International coauthorship

    Atsushi Hariki, Mathias Winder, Jan Kuneš

    Physical Review Letters   121 ( 12 )   2018.09( ISSN:0031-9007

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevlett.121.126403

  • Redox behavior of solid solutions in the SrFe1-xCuxO3-δ system for application in thermochemical oxygen storage and air separation Reviewed International coauthorship

    Josua Vieten, Brendan Bulfin, David E. Starr, Atsushi Hariki, Frank M. F. de Groot, Anahita Azarpira, Carolin Zachäus, Michael Hävecker, Katarzyna Skorupska, Nicole Knoblauch, Martin Schmücker, Martin Roeb, Christian Sattler

    Energy Technology   2018.07( ISSN:2194-4288

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1002/ente.201800554

  • Excitonic dispersion of the intermediate spin state in LaCoO3 revealed by resonant inelastic x-ray scattering Reviewed International coauthorship

    Ru-Pan Wang, Atsushi Hariki, Andrii Sotnikov, Federica Frati, Jun Okamoto, Hsiao-Yu Huang, Amol Singh, Di-Jing Huang, Keisuke Tomiyasu, Chao-Hung Du, Jan Kuneš, Frank M. F. de Groot

    Physical Review B   98 ( 3 )   2018.07( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.98.035149

  • Excitonic magnet in external field: Complex order parameter and spin currents Reviewed International coauthorship

    D. Geffroy, A. Hariki, J. Kuneš

    Physical Review B   97 ( 15 )   2018.04( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.97.155114

  • DFT+DMFT study on soft moment magnetism and covalent bonding in SrRu2O6 Reviewed International coauthorship

    Atsushi Hariki, Andreas Hausoel, Giorgio Sangiovanni, Jan Kuneš

    Physical Review B   96 ( 15 )   2017.10( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.96.155135

  • LDA+DMFT approach to core-level spectroscopy: Application to 3d transition metal compounds Reviewed International coauthorship

    Atsushi Hariki, Takayuki Uozumi, Jan Kuneš

    Physical Review B   96 ( 4 )   2017.07( ISSN:2469-9950

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1103/physrevb.96.045111

  • Orbital- and spin-order sensitive nonlocal screening in Mn 2p X-ray photoemission of La1−xSrxMnO3 Reviewed

    A. Hariki, A. Yamanaka, T. Uozumi

    EPL (Europhysics Letters)   114 ( 2 )   27003 - 27003   2016.04( ISSN:0295-5075

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.1209/0295-5075/114/27003

  • Theory of Spin-State Selective Nonlocal Screening in Co 2pX-ray Photoemission Spectrum of LaCoO3 Reviewed

    Atsushi Hariki, Akihiro Yamanaka, Takayuki Uozumi

    Journal of the Physical Society of Japan   84 ( 7 )   073706 - 073706   2015.07( ISSN:0031-9015

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.7566/jpsj.84.073706

  • High-Pressure Synthesis, Crystal Structure, and Unusual Valence State of Novel Perovskite Oxide CaCu3Rh4O12 Reviewed

    Ikuya Yamada, Mikiko Ochi, Masaichiro Mizumaki, Atsushi Hariki, Takayuki Uozumi, Ryoji Takahashi, Tetsuo Irifune

    Inorganic Chemistry   53 ( 14 )   7089 - 7091   2014.07( ISSN:0020-1669

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    A novel perovskite oxide, CaCu3Rh4O12, has been synthesized under high-pressure and high-temperature conditions (15 GPa and 1273 K). Rietveld refinement of synchrotron X-ray powder diffraction data indicates that this compound crystallizes in a cubic AA'3B4O12-type perovskite structure. Synchrotron X-ray absorption and photoemission spectroscopy measurements reveal that the Cu and Rh valences are nearly trivalent. The spectroscopic analysis based on calculations suggests that the appropriate ionic model of this compound is Ca(2+)Cu(∼2.8+)3Rh(∼3.4+)4O12, as opposed to the conventional Ca(2+)Cu(2+)3Rh(4+)4O12. The uncommon valence state of this compound is attributed to the relative energy levels of the Cu 3d and Rh 4d orbitals, in which the large crystal-field splitting energy of the Rh 4d orbitals is substantial.

    DOI: 10.1021/ic501341x

    PubMed

  • Dynamical Mean-Field Approach to Ni 2pX-ray Photoemission Spectra of NiO: A Role of Antiferromagnetic Ordering Reviewed

    Atsushi Hariki, Yoshiyuki Ichinozuka, Takayuki Uozumi

    Journal of the Physical Society of Japan   82 ( 4 )   043710 - 043710   2013.04( ISSN:0031-9015

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.7566/jpsj.82.043710

  • Core-Level Photoemission Study for Undoped Cuprates with a Dynamical Mean-Field Approach Considering Realistic Crystal Structure Reviewed

    Atsushi Hariki, Yoshiyuki Ichinozuka, Takayuki Uozumi

    Journal of the Physical Society of Japan   82 ( 2 )   023709 - 023709   2013.02( ISSN:0031-9015

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    Publishing type:Research paper (scientific journal)   International / domestic magazine:International journal  

    DOI: 10.7566/jpsj.82.023709

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MISC

  • Metal-insulator transition in CaCu$_3$Fe$_4$O$_{12}$

    Atsushi Hariki

    2019.09

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    We study structurally-triggered metal-insulator transition in CaCu$_3$Fe$_4$O$_{12}$ by means of local density approximation (LDA) +$U$ and LDA+dynamical mean-field theory (DMFT). The ferrimagnetic insulating phase is essentially the same within both approaches. While LDA+$U$ describes the metal-insulator transition as a Peierls-like instability driven by Fermi surface nesting in the magnetically ordered phase, LDA+DMFT allows also the site-selective Mott transition without magnetic ordering as well as smooth crossover between the two pictures. We point out similarities and differences to rare-earth nickelates.

    Other URL: http://arxiv.org/pdf/1909.12126v1

Presentations

  • X-ray spectroscpies in altermagnetic α-MnTe International conference

    Atsushi Hariki

    Trends in the Theory of Quantum Materials 2023  2023.10 

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    Presentation type:Oral presentation (general)  

  • DFT+DMFT study on x-ray magnetic circular dichroism in altermagnetic α-MnTe International coauthorship International conference

    A. Hariki, T. Yamaguchi, D. Kriegner, K. W. Edmonds, P. Wadley, S. S. Dhesi, G. Springholz, L. Smejcal, K. Výborný, T. Jungwirth, J. Kunes

    Computational Approaches to Quantum Many-Body Systems  2023.10 

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    Presentation type:Poster presentation  

  • DFT+U and DFT+DMFT study on structural and metal-insulator transition in charge-disproportionated perovskite oxide PbCrO3 International coauthorship International conference

    M. Furo, K.-H. Ahn, T. Yamaguchi, J. Kunes, A. Hariki

    Computational Approaches to Quantum Many-Body Systems  2023.10 

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    Presentation type:Poster presentation  

  • LDA+DMFT approach to core-level x-ray photoemission spectroscopy in correlated materials International coauthorship International conference

    T. Okauchi, J. Kunes, A. Hariki

    Computational Approaches to Quantum Many-Body Systems  2023.10 

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    Presentation type:Poster presentation  

  • X-ray Spectroscopies in Altermagnetic α-MnTe International coauthorship International conference

    T. Yamaguchi, A. Hariki, D. Kriegner, K. W. Edmonds, P. Wadley, S. S. Dhesi, G. Springholz, L. Smejkal, K. Výborný, T. Jungwirth, J. Kunes

    10th International Workshop on Strong Correlations and Angle-resolved Photoemission Spectroscopy  2023.09 

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    Presentation type:Poster presentation  

  • LDA+DMFT approach to resonant inelastic x-ray scattering in strongly correlated magnetic systems International coauthorship International conference

    Y. Takahashi, J. Kuneš, A. Hariki

    RIXS / RXES workshop 2023  2023.08 

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    Presentation type:Poster presentation  

  • Cu L3-edge resonant inelastic x-ray scattering on isostructural copper oxides CaCu3Fe4O12 and EuCu3Fe4O12 International coauthorship Domestic conference

    T. Yamaguchi, R.-P. Wang, H.-Y. Huang, A. Singh, M. Goto, Y. Takahashi, Y. Kato, D.-J. Huang, J. Okamoto, M.-J. Huang, K. Kikuchi, H. Anzai, J. Kunes, I. Yamada, A. Hariki

    RIXS / RXES workshop 2023  2023.08 

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    Presentation type:Poster presentation  

  • LDA+DMFT approach to resonant inelastic x-ray scattering in correlated materials Invited International coauthorship International conference

    Atsushi Hariki, Jan Kunes

    RIXS / RXES workshop 2023  2023.08 

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    Presentation type:Oral presentation (invited, special)  

  • LDA+DMFT approach to core-level spectroscopy in 4f and 5f intermetallic compounds Invited International conference

    Atsushi Hariki

    International Workshop on the Dual Nature of f-Electrons 2023  2023.06 

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    Presentation type:Oral presentation (invited, special)  

  • Theoretical Modeling of Valence-skipping Perovskite Oxides PbCrO3 and PbCoO3 International coauthorship International conference

    Mizuki Furo, Kyo-Hoon Ahn, Tatsuya Yamaguchi, Jan Kunes, Atsushi Hariki

    International Conference on Strongly Correlated Electron Systems 2023 (SCES 2023)  2023.05 

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    Presentation type:Poster presentation  

  • DFT+DMFT approach to X-ray photoemission spectroscopy in correlated transition metal perovskites Invited Domestic conference

    Atsushi Hariki

    Intermetallic charge transfer probed by X-ray spectroscopies  2023.05 

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    Presentation type:Oral presentation (invited, special)  

  • Single- and Multimagnon Dynamics in Antiferromagnetic α-Fe2O3 Thin Films International coauthorship International conference

    Atsushi Hariki, Jiemin Li, Yanhong Gu, Yoshihiro Takahashi, Keisuke Higashi, Taehun Kim, Yang Cheng, Fengyuan Yang, Jan Kunes, Valentina Bisogni

    International Conference on Strongly Correlated Electron Systems 2023 (SCES 2023)  2023.05 

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    Presentation type:Poster presentation  

  • Valence skipping, internal doping and structural transition in PbCoO3 and PbCrO3 under pressure Invited

    Atsushi Hariki

    2023.03 

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    Presentation type:Oral presentation (invited, special)  

  • バレンススキッピングペロブスカイト酸化物PbCrO3とPbCoO3の電子構造・構造相転移に関する理論研究

    不老美月, 山口達也, Kyo-Hoon Ahn, Jan Kunes, 播木敦

    日本物理学会2023年春季大会  2023.03 

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    Presentation type:Poster presentation  

  • Fe L3端高分解能共鳴非弾性X線散乱を用いたFe2O3の高次マグノン励起の研究

    髙橋良拓, Jiemin Li, Yanhong Gu, 東啓介, Taehun Kim, Yang Cheng, Fengyuan Yang, Jan Kuneš, Jonathan Pelliciari, Valentina Bisogni, 播木敦

    日本物理学会2023年春季大会  2023.03 

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    Presentation type:Oral presentation (general)  

  • Kondo physics in CaCu3Ru4O12: LDA+DMFT and X-ray photoemission spectroscopy study Invited International coauthorship Domestic conference

    A. Hariki, K. Kasebayashi, J. Kuneš

    The 32nd Annual Meeting of MRS-J  2022.12 

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    Presentation type:Oral presentation (invited, special)  

  • Valence skipping, internal doping and structural transition in PbCoO3 under pressure International coauthorship Domestic conference

    M. Furo, T. Yamaguchi, K.-H. Ahn, J. Kunes, A. Hariki

    The 32nd Annual Meeting of MRS-J  2022.12 

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    Presentation type:Oral presentation (general)  

  • Metal-insulator transition in A-site ordered perovskite oxides ACu3Fe4O12 International coauthorship Domestic conference

    T. Yamaguchi, K.-H. Ahn, W. Mathias, J. Kuneš, A. Hariki

    The 32nd Annual Meeting of MRS-J  2022.12 

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    Presentation type:Oral presentation (general)  

  • Dynamics of spin, orbital and charge excitations in strongly correlated materials revealed by resonant inelastic x-ray scattering Invited International conference

    Atsushi Hariki

    The 9th QST International Symposium  2022.11 

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    Presentation type:Oral presentation (invited, special)  

  • Resonant inelastic x-ray scattering of hematite Fe2O3: LDA+DMFT analysis International coauthorship Domestic conference

    Yoshihiro Takahashi, Jiemin Li, Yanhong Gu, Keisuke Higashi, Taehun Kim, Yang Cheng, Fengyuan Yang, Jan Kuneš, Jonathan Pelliciari, Valentina Bisogni, Atsushi Hariki

    次世代放射光で切り拓く軟X線科学(日本放射光学会 第14回若手研究会)  2022.09 

  • LDA+DMFT approach to resonant inelastic x-ray scattering in correlated materials Invited Domestic conference

    Atsushi Hariki

    次世代放射光で切り拓く軟X線科学(日本放射光学会 第14回若手研究会)  2022.09 

  • CaCu3Ru4O12: A High Kondo-Temperature Transition Metal Oxide Invited International conference

    Atsushi Hariki

    International Workshop Computational Approaches to Magnetic Systems (CAMS-2022)  2022.08 

  • CaCu3Ru4O12: A High Kondo-Temperature Transition Metal Oxide International coauthorship International conference

    A. Hariki, K. Kasebayashi, J. Kuneš

    International Conference on Strongly Correlated Electron Systems 2022  2022.08 

  • Spin, orbital and charge excitations of Fe2O3 revealed by high resolution RIXS: LDA+DMFT analysis International coauthorship International conference

    Y. Takahashi, L. Jiemin, K. Higashi, T. Uozumi, J. Kuneš, G. Yanhong, P. Jonathan, V. Bisogni, A. Hariki

    International Conference on Strongly Correlated Electron Systems 2022  2022.08 

  • Metal-insulator transition in A-site ordered perovskite oxides ACu3Fe4O12 International coauthorship International conference

    T. Yamaguchi, K.-H. Ahn, W. Mathias, J. Kuneš, A. Hariki

    International Conference on Strongly Correlated Electron Systems 2022  2022.08 

  • CaCu3Ru4O12: A High Kondo-Temperature Transition Metal Oxide International coauthorship International conference

    International Workshop on Correlations and Angle-Resolved Photoemission Spectroscopy (CORPES22)  2022.07 

  • Core-level x-ray spectroscopy of infinite-layer nickelate: DFT+DMFT analysis International coauthorship International conference

    K. Higashi, W. Mathias, T. Uozumi, Jan Kuneš, A. Hariki

    18th International Conference on X-Ray Absorption Fine Structure (XAFS2022)  2022.07 

  • Metal-insulator transition in A-site ordered perovskite oxides ACu3Fe4O1 International coauthorship International conference

    T. Yamaguchi, K.-H. Ahn, W. Mathias, J. Kuneš, A. Hariki

    International Workshop on Correlations and Angle-Resolved Photoemission Spectroscopy (CORPES22)  2022.07 

  • Core-level x-ray photoemission spectroscopy of 3d transition metal oxides: DFT+DMFT analysis International coauthorship International conference

    K. Higashi, T. Yamaguchi, M. Winder, T. Uozumi, J. Kuneš, A. Hariki

    The 9th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES2022)  2022.06 

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    Presentation type:Poster presentation  

  • LDA+DMFT approach to core-level x-ray spectroscopies in correlated electron systems Invited International coauthorship International conference

    Atsushi Hariki, Keisuke Higashi, Tatsuya Yamaguchi, Winder Mathias, Takayuki Uozumi, Jan Kuneš

    The 9th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES2022)  2022.06 

  • CaCu3Ru4O12: high-temperature Kondo transition metal oxide Invited International coauthorship International conference

    Atsushi Hariki

    International Workshop on the Dual Nature of f-Electrons 2022  2022.06 

  • 四重ペロブスカイト酸化物CaCu3Ru4O12の近藤現象 International coauthorship Domestic conference

    加瀬林啓人, Daisuke Takegami, Chang-Yang Kuo, B, Jonghwan Kim, Chun-Fu Chang, Cheng-En Liu, D, Chi-Nan Wu, E, Deepa Kasinathan, Simone G Altendorf, Katharina Höfer, Federico Meneghin, Andrea Marino, Yen-Fa Liao, Ku-Ding Tsuei, Chien-Te Chen, Kyung-Tae Ko, Axel Günther, Stefan Ebbinghaus, Junwon Seo, Dong-Hoon Lee, Gihun Ryu, Alexander Christoph Komarek, 菅野聡, 島川祐一, 田中新, 溝川貴司, Jan Kunes, Liu Hao Tjeng, 播木敦

    日本物理学会第77回年次大会  2022.03 

  • 内殻X線分光を用いた超伝導層状ニッケル酸化物の電子状態の研究 International coauthorship Domestic conference

    東啓介, Winder Mathias, Jan Kunes, 播木敦

    日本物理学会第77回年次大会  2022.03 

  • Aサイト秩序ペロブスカイト酸化物ACu3Fe4O12の金属絶縁体転移 International coauthorship Domestic conference

    山口達也, Kyo-Hoon, Winder Mathias, Jan Kunes, 播木敦

    日本物理学会第77回年次大会  2022.03 

  • Fe2O3のFe L3端高分解能共鳴非弾性X線散乱 International coauthorship Domestic conference

    髙橋良拓, Li Jiemin, 東啓介, 魚住孝幸, Jan Kuneš, Gu Yanhong, Pelliciari Jonathan, Valentina Bisogni, 播木敦

    日本物理学会第77回年次大会  2022.03 

  • LDA+DMFT approach to resonant inelastic x-ray scattering in correlated materials Invited International coauthorship International conference

    A. Hariki, M. Winder, T. Uozumi, J. Kuneš

    Global Summit on Condensed Matter Physics  2021.10 

  • Core-level x-ray spectroscopy of infinite-layer nickelate : DFT+DMFT analysis International coauthorship International conference

    K. Higashi, W. Mathias, T. Uozumi, J. Kunes, A. Hariki

    International Conference on X-Ray Absorption Fine Structure 2021 Virtual (XAFS2021 Virtual)  2021.07 

  • Kondo physics in the A-site ordered perovskite CaCu3Ir4O12 and CaCu3Ru4O12 International coauthorship International conference

    Keito Kasebayashi, Jan Kunes, Atsushi Hariki

    The 11th New Generation in Strongly Correlated Electron Systems  2021.06 

  • Core-level x-ray spectroscopy of infinite-layer nickelate: LDA+DMFT study International coauthorship International conference

    Atsushi Hariki, Keisuke Higashi, Mathis Winder, Jan Kuneš

    The 11th New Generation in Strongly Correlated Electron Systems  2021.06 

  • 超伝導層状ニッケル酸化物の内殻X線分光 International coauthorship Domestic conference

    東啓介, Winder Mathias, 魚住孝幸, Jan Kunes, 播木敦

    日本物理学会第76回年次大会  2021.03 

  • 四重ペロブスカイト酸化物CaCu3Ir4O12の近藤現象 International coauthorship Domestic conference

    加瀬林啓人, Jan Kunes, 播木敦

    日本物理学会第76回年次大会  2021.03 

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Grant-in-Aid for Scientific Research

  • 動的平均場理論を用いた共鳴非弾性X線散乱のマルチスケール解析手法の開発と応用

    2021

Charge of on-campus class subject

  • Practicum in Electromagnetic Theory

    2021    

  • Practicum in Quantum Mechanics

    2021    

  • Practicum in Quantum Mechanics

    2020    

Number of papers published by graduate students

  • 2022

    Number of graduate students presentations:3

Number of instructed thesis, researches

  • 2022

    Number of instructed the graduation thesis:

Social Activities

  • 独自項目:未来の博士育成ラボ「コンピュータを使って、確率の奇妙な世界をのぞいてみよう」(対面実験)

    Role(s): Lecturer, Planner