Observation of element-selective band structures at the charge-transfer interfaces of oxides

• Project/Area Number: 18K14130
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 29020:Thin film/surface and interfacial physical properties-related
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: Kitamura Miho 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 助教 (00783581)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 酸化物界面 / 光電子分光 / 角度分解光電子分光 / 放射光 / 薄膜界面 / ペロブスカイト酸化物 / X線吸収分光 / 共鳴光電子分光

Outline of Final Research Achievements

In order to understand the origin of the unique electric and/or magnetic properties observed at heterointerfaces of transition-metal oxides, we have performed resonant angle-resolved photoemission spectroscopy of heterostructures. By using synchrotron-radiation light at the energy of the absorption-edge of the elements, the element-selective band structure at the interface can be determined.
Resonant angle-resolved photoemission spectroscopy of La1-xSrxMnO3-LaNiO3 heterostructures has been performed using synchrotron-radiation light at the energy of the Ni and Mn-L absorption edges. Then we have observed band structures derived from La1-xSrxMnO3 and LaNiO3 separately.

Academic Significance and Societal Importance of the Research Achievements

酸化物ヘテロ界面は、構成物質単体とは異なる特異な物性を発現するため次世代デバイスへの応用が期待されている。酸化物界面に特有の物性を設計・制御するためには、この発現メカニズムを理解することが非常に重要となる。今回の研究では、界面の磁気特性や伝導特性を決める価電子帯のバンド構造を元素選択的に直接決定することに成功した。これにより得られた知見を元に新奇な物性の設計指針を構築することで、酸化物ヘテロ構造における界面物性の設計・制御に大きく貢献できると考えられる。

Research Products

• [Journal Article] Investigation of the electronic states of A-site layer-ordered double perovskite YBaCo2Ox (x = 5.3 and 6) thin films by x-ray spectroscopy (2021)
  • Author(s): Chikamatsu Akira、Katayama Tsukasa、Maruyama Takahiro、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Wadati Hiroki、Hasegawa Tetsuya
  • Journal Title: Applied Physics Letters Volume: 118 Issue: 1 Pages: 012401-012401
  • DOI: 10.1063/5.0031096
  • Peer Reviewed
• [Journal Article] Influence of oxygen vacancies on magnetic properties of perpendicularly magnetized NiCo2O4 epitaxial thin films (2020)
  • Author(s): Suzuki Ikumi、Kan Daisuke、Kitamura Miho、Shen Yufan、Horiba Koji、Shimakawa Yuichi
  • Journal Title: Journal of Applied Physics Volume: 127 Issue: 20 Pages: 203903-203903
  • DOI: 10.1063/5.0008173
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Insulator-to-Metal Transition of Cr2O3 Thin Films via Isovalent Ru3+ Substitution (2020)
  • Author(s): Fujiwara Kohei、Kitamura Miho、Shiga Daisuke、Niwa Yasuhiro、Horiba Koji、Nojima Tsutomu、Ohta Hiromichi、Kumigashira Hiroshi、Tsukazaki Atsushi
  • Journal Title: Chemistry of Materials Volume: 32 Issue: 12 Pages: 5272-5279
  • DOI: 10.1021/acs.chemmater.0c01497
  • Peer Reviewed
• [Journal Article] Influence of fluorination on electronic states and electron transport properties of Sr2IrO4 thin films (2020)
  • Author(s): Maruyama Takahiro、Chikamatsu Akira、Katayama Tsukasa、Kuramochi Kenta、Ogino Hiraku、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Hasegawa Tetsuya
  • Journal Title: Journal of Materials Chemistry C Volume: 8 Issue: 24 Pages: 8268-8274
  • DOI: 10.1039/d0tc01734e
  • Peer Reviewed
• [Journal Article] Spin and orbital magnetic moments in perpendicularly magnetized Ni1-xCo2+yO4-z epitaxial thin films: Effects of site-dependent cation valence states (2020)
  • Author(s): Kan Daisuke、Mizumaki Masaichiro、Kitamura Miho、Kotani Yoshinori、Shen Yufan、Suzuki Ikumi、Horiba Koji、Shimakawa Yuichi
  • Journal Title: Physical Review B Volume: 101 Issue: 22 Pages: 2244341-6
  • DOI: 10.1103/physrevb.101.224434
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observation of inverted band structure in the topological Dirac semimetal candidate CaAuAs (2020)
  • Author(s): Nakayama Kosuke、Wang Zhiwei、Takane Daichi、Souma Seigo、Kubota Yuya、Nakata Yuki、Cacho Cephise、Kim Timur、Ekahana Sandy Adhitia、Shi Ming、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Takahashi Takashi、Ando Yoichi、Sato Takafumi
  • Journal Title: Physical Review B Volume: 102 Issue: 4 Pages: 1-5
  • DOI: 10.1103/physrevb.102.041104
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Polarity reversal of the charge carrier in tetragonal TiHx(x=1.6-2.0) at low temperatures (2020)
  • Author(s): Shimizu Ryota、Sasahara Yuki、Hamada Ikutaro、Oguchi Hiroyuki、Ogura Shohei、Shirasawa Tetsuroh、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Orimo Shin-ichi、Fukutani Katsuyuki、Hitosugi Taro
  • Journal Title: Physical Review Research Volume: 2 Issue: 3 Pages: 0334671-9
  • DOI: 10.1103/physrevresearch.2.033467
  • Peer Reviewed / Open Access
• [Journal Article] Impact of the Crystal Orientation of Positive Electrodes on the Interface Resistance across a Solid Electrolyte and Electrode (2020)
  • Author(s): Nishio Kazunori、Nakamura Naoto、Horiba Koji、Kitamura Miho、Kumigashira Hiroshi、Shimizu Ryota、Hitosugi Taro
  • Journal Title: ACS Applied Energy Materials Volume: 3 Issue: 7 Pages: 6416-6421
  • DOI: 10.1021/acsaem.0c00644
  • Peer Reviewed / Open Access
• [Journal Article] Low resistance at LiNi1/3Mn1/3Co1/3O2 and Li3PO4 interfaces (2020)
  • Author(s): Nishio Kazunori、Nakamura Naoto、Horiba Koji、Kitamura Miho、Kumigashira Hiroshi、Shimizu Ryota、Hitosugi Taro
  • Journal Title: Applied Physics Letters Volume: 116 Issue: 5 Pages: 053901-053901
  • DOI: 10.1063/1.5133879
  • Peer Reviewed
• [Journal Article] Electronic properties of perovskite strontium chromium oxyfluoride epitaxial thin films fabricated via low-temperature topotactic reaction (2020)
  • Author(s): Chikamatsu Akira、Maruyama Takahiro、Katayama Tsukasa、Su Yu、Tsujimoto Yoshihiro、Yamaura Kazunari、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Hasegawa Tetsuya
  • Journal Title: Physical Review Materials Volume: 4 Issue: 2 Pages: 1-6
  • DOI: 10.1103/physrevmaterials.4.025004
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Anomalous Hall effect at the spontaneously electron-doped polar surface of PdCoO2 ultrathin films (2020)
  • Author(s): Harada T.、Sugawara K.、Fujiwara K.、Kitamura M.、Ito S.、Nojima T.、Horiba K.、Kumigashira H.、Takahashi T.、Sato T.、Tsukazaki A.
  • Journal Title: Physical Review Research Volume: 2 Issue: 1 Pages: 1-6
  • DOI: 10.1103/physrevresearch.2.013282
  • Peer Reviewed / Open Access
• [Journal Article] Relationship between charge redistribution and ferromagnetism at the heterointerface between the perovskite oxides LaNiO3 and LaMnO3 (2019)
  • Author(s): Kitamura Miho、Kobayashi Masaki、Sakai Enju、Minohara Makoto、Yukawa Ryu、Shiga Daisuke、Amemiya Kenta、Nonaka Yosuke、Shibata Goro、Fujimori Atsushi、Fujioka Hiroshi、Horiba Koji、Kumigashira Hiroshi
  • Journal Title: Physical Review B Volume: 100 Issue: 24 Pages: 2451321-8
  • DOI: 10.1103/physrevb.100.245132
  • Peer Reviewed
• [Journal Article] Growth and physical properties of Ce(O,F)Sb(S,Se)2 single crystals with site-selected chalcogen atoms (2019)
  • Author(s): Nagao Masanori、Tanaka Masashi、Miura Akira、Kitamura Miho、Horiba Koji、Watauchi Satoshi、Takano Yoshihiko、Kumigashira Hiroshi、Tanaka Isao
  • Journal Title: Solid State Communications Volume: 289 Pages: 38-42
  • DOI: 10.1016/j.ssc.2018.12.004
  • NAID: 120006939207
  • Peer Reviewed
• [Journal Article] Bottom-current-collector-free thin-film batteries using LiNi0.8Co0.2O2 epitaxial thin films (2019)
  • Author(s): Nishio Kazunori、Horiba Koji、Nakamura Naoto、Kitamura Miho、Kumigashira Hiroshi、Shimizu Ryota、Hitosugi Taro
  • Journal Title: Journal of Power Sources Volume: 416 Pages: 56-61
  • DOI: 10.1016/j.jpowsour.2019.01.067
  • Peer Reviewed
• [Journal Article] Emergence of metallic monoclinic states of VO2 films induced by K deposition (2019)
  • Author(s): Shiga D.、Minohara M.、Kitamura M.、Yukawa R.、Horiba K.、Kumigashira H.
  • Journal Title: Physical Review B Volume: 99 Issue: 12 Pages: 125120-125120
  • DOI: 10.1103/physrevb.99.125120
  • Peer Reviewed
• [Journal Article] Control of two-dimensional electronic states at anatase TiO2(001) surface by K adsorption (2018)
  • Author(s): Yukawa R.、Minohara M.、Shiga D.、Kitamura M.、Mitsuhashi T.、Kobayashi M.、Horiba K.、Kumigashira H.
  • Journal Title: Physical Review B Volume: 97 Issue: 16 Pages: 165428-165428
  • DOI: 10.1103/physrevb.97.165428
  • Peer Reviewed
• [Journal Article] High-density two-dimensional electron system induced by oxygen vacancies in ZnO (2018)
  • Author(s): Rodel T. C.、Dai J.、Fortuna F.、Frantzeskakis E.、Le Fevre P.、Bertran F.、Kobayashi M.、Yukawa R.、Mitsuhashi T.、Kitamura M.、Horiba K.、Kumigashira H.、Santander-Syro A. F.
  • Journal Title: Physical Review Materials Volume: 2 Issue: 5
  • DOI: 10.1103/physrevmaterials.2.051601
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spatial coherence of the insulating phase in quasi-two-dimensional LaNiO3 films (2018)
  • Author(s): Anada Masato、Kowa Kazuhiro、Maeda Hiroki、Sakai Enju、Kitamura Miho、Kumigashira Hiroshi、Sakata Osami、Nakanishi-Ohno Yoshinori、Okada Masato、Kimura Tsuyoshi、Wakabayashi Yusuke
  • Journal Title: Physical Review B Volume: 98 Issue: 1 Pages: 014105-014105
  • DOI: 10.1103/physrevb.98.014105
  • Peer Reviewed
• [Journal Article] Growth of antiperovskite oxide Ca3SnO films by pulsed laser deposition (2018)
  • Author(s): Minohara Makoto、Yukawa Ryu、Kitamura Miho、Kumai Reiji、Murakami Youichi、Kumigashira Hiroshi
  • Journal Title: Journal of Crystal Growth Volume: 500 Pages: 33-37
  • DOI: 10.1016/j.jcrysgro.2018.08.014
  • Peer Reviewed
• [Presentation] PF BL-28におけるマイクロARPESシステムの開発 (2021)
  • Author(s): 北村未歩、相馬清吾、若林大佑、田中宏和、豊島章雄、雨宮健太、本間飛鳥、川上竜平、菅原克明、中山耕輔、佐藤宇史、組頭広志、堀場弘司
  • Organizer: 2020年度量子ビームサイエンスフェスタ
• [Presentation] ペロブスカイト酸化物ヘテロ界面における電荷移動の発現機構 (2021)
  • Author(s): 北村未歩、小林正起、簔原誠人、坂井延寿、湯川龍、藤岡洋、堀場弘司、組頭広志
  • Organizer: 日本物理学会第75回年次大会
• [Presentation] 非対称な電荷再分布が誘起するペロブスカイト遷移金属酸化物の界面磁性 (2020)
  • Author(s): 北村未歩、小林正起、坂井延寿、簔原誠人、湯川龍、志賀大亮、雨宮健太、野中洋亮、芝田悟朗、藤森淳、藤岡洋、堀場弘司、組頭広志
  • Organizer: 第30回日本 MRS年次大会
  • Invited
• [Presentation] Ferromagnetism induced by the charge redistribution at the interface between perovskite oxides LaNiO3 and LaMnO3 (2020)
  • Author(s): M. Kitamura, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, D. Shiga, K. Amemiya, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, K. Horiba, and H. Kumigashira
  • Organizer: The IMR + MAX IV 2020 International Workshop
  • Int'l Joint Research
• [Presentation] Relationship between charge redistribution and ferromagnetism at the heterointerface between LaNiO3 and LaMnO3 (2020)
  • Author(s): M. Kitamura, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, D. Shiga, K. Amemiya, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, K. Horiba, and H. Kumigashira
  • Organizer: The 3rd Symposium for The Core Research Clusters for Materials Science and Spintronics
  • Int'l Joint Research
• [Presentation] ペロブスカイト酸化物ヘテロ界面における電荷移動の発現機構 (2020)
  • Author(s): 北村未歩、小林正起、簔原誠人、坂井延寿、湯川龍、藤岡洋、堀場弘司、組頭広志
  • Organizer: 日本物理学会第75回年次大会
• [Presentation] Mechanism of charge transfer at heterointerfaces between perovskite transition-metal oxides (2019)
  • Author(s): M. Kitamura, M. Kobayashi, M. Minohara, E. Sakai, H. Fujioka, K. Horiba, and H. Kumigashira
  • Organizer: The 40th International Conference on Vaccum Ultraviolet and X-ray Physics
  • Int'l Joint Research
• [Presentation] Mechanism of charge transfer phenomena in perovskite-oxide interfaces (2019)
  • Author(s): M. Kitamura, M. Kobayashi, M. Minohara, E. Sakai, R. Yukawa, H. Fujioka, K. Horiba, and H. Kumigashira
  • Organizer: 26th International Workshop on Oxide Electronics
  • Int'l Joint Research
• [Presentation] ペロブスカイト型遷移金属酸化物へテロ界面における電荷移動の発現機構 (2019)
  • Author(s): 北村未歩、小林正起、簔原誠人、坂井延寿、湯川龍、藤岡洋、堀場弘司、組頭広志
  • Organizer: 第32回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] Present Status of wide-energy-range VUV-SX beamline BL-2 MUSASHI at KEK-PF (2018)
  • Author(s): M. Kitamura, K. Horiba, M. Minohara, R. Yukawa, D. Shiga, A. Toyoshima, H. Tanaka, Y. Nagatani, T. Kosuge, K. Amemiya, and H. Kumigashira
  • Organizer: International Conference on Synchrotron Radiation Instrumentation (SRI) 2018
  • Int'l Joint Research
• [Presentation] Origin of Interfacial Ferromagnetism Between Perovskite Oxides LaNiO3 and LaMnO3 (2018)
  • Author(s): M. Kitamura, K. Horiba, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, D. Shiga, K. Amemiya, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, and H. Kumigashira
  • Organizer: 14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14)
  • Int'l Joint Research
• [Presentation] ペロブスカイト型遷移金属酸化物へテロ界面における電荷移動のメカニズム (2018)
  • Author(s): 北村未歩、小林正起、簔原誠人、坂井延寿、藤岡洋、堀場弘司、組頭広志
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] ペロブスカイト型遷移金属酸化物LaNiO3/LaMnO3ヘテロ構造における界面強磁性の起源 (2018)
  • Author(s): 北村未歩、小林正起、坂井延寿、簔原誠人、湯川龍、志賀大亮、雨宮健太、野中洋亮、芝田悟朗、藤森淳、藤岡洋、堀場弘司、組頭広志
  • Organizer: 第10回放射光学会若手研究会
• [Presentation] Origin of interfacial ferromagnetism between perovskite transition-metal oxides LaNiO3 and LaMnO3 (2018)
  • Author(s): M. Kitamura, K. Horiba, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, D. Shiga, K. Amemiya, T. Nagai, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, and H. Kumigashira
  • Organizer: The 42nd Annual Conference on MAGNETICS in Japan
  • Invited