Novel two-dimensional electron liquid states in quantum well structures of strongly-correlated oxides

• Project/Area Number: 16H02115
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Tohoku University (2018-2019); High Energy Accelerator Research Organization (2016-2017)
• Principal Investigator: 組頭 広志 東北大学, 多元物質科学研究所, 教授 (00345092)
• Co-Investigator(Kenkyū-buntansha): 堀場 弘司 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, 准教授 (10415292) ; 簑原 誠人 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, 特別助教 (70728633)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Granted(Fiscal Year 2019)
• Budget Amount: ¥41,600,000 (Direct Cost : ¥32,000,000、Indirect Cost : ¥9,600,000); Fiscal Year 2019 : ¥6,240,000 (Direct Cost : ¥4,800,000、Indirect Cost : ¥1,440,000); Fiscal Year 2018 : ¥6,240,000 (Direct Cost : ¥4,800,000、Indirect Cost : ¥1,440,000); Fiscal Year 2017 : ¥6,240,000 (Direct Cost : ¥4,800,000、Indirect Cost : ¥1,440,000); Fiscal Year 2016 : ¥22,880,000 (Direct Cost : ¥17,600,000、Indirect Cost : ¥5,280,000)
• Keywords: 量子井戸構造 / 角度分解光電子分光 / 強相関電子系 / 酸化物 / バンド構造 / 酸化物ヘテロ構造 / 酸化物薄膜 / 機能性ナノ構造 / 放射光 / 機能性酸化物

Outline of Annual Research Achievements

本研究では、酸化物量子井戸構造内に閉じ込められた強相関電子が示す2次元電子液体（「金属」量子化状態）の新奇な2次元電子液体の本質を明らかにし、その知見に基づいて新たな機能を開拓することを目的としている。そのために、高輝度放射光を用いて酸化物量子井戸構造内のスピン・軌道・量子化状態を可視化する「偏光可変スピン・軌道分解角度分解光電子分光（ARPES）装置」の建設を行った。また、新装置立ち上げと平行して、既存装置をPhoton Factoryの偏光（垂直、水平、右円、左円）を切り替え可能なビームラインBL2A MUSASHIに設置し、偏光依存ARPESを用いた下記の２つの研究を行った。

１）(110)基板上に作製したSrVO3量子井戸構造における軌道選択的量子化状態を偏光依存ARPESで調べた結果、(001)面とは異なった振る舞いを示すことが明らかになった。詳細な解析の結果、強相関電子のコヒーレンス長が量子化に密接にかかわっていることが明らかになった。
２）典型的な酸化物半導体であるアナターゼTiO2の表面にKを吸着させることで、２次元電子液体状態を誘起することに成功した。また、この２次元電子液体状態が、電気２重層トランジスターのゲート電界下のチャネル層と類似していることを明らかにした。

また、新しく立ち上げている「偏光可変スピン・軌道分解ARPES装置」用の新型マニュピレータを設計・作製し、実装することで、広い波数空間の測定を精度良く行うことを可能にした。

Current Status of Research Progress

2 :  Research has progressed on the whole more than it was originally planned.

Reason

表面吸着Kにより表面領域に電子ドープした状態が電気二重層トランジスタ（EDLT）のゲート電界下におけるチャネル層と類似していることが明らかになってきた。そのため、この表面吸着K法を酸化物半導体TiO2、VO2、BaBiO3、等に展開し、表面の2次元電子状態形成メカニズムを明らかにする。また、得られた知見を元に表面2次元電子液体状態の制御指針を確立する。

既存装置を用いた偏光（垂直、水平、右円、左円）依存ARPES実験は順調に遂行されている。一方で、開発中の偏光可変スピン・軌道分解ARPES装置の立ち上げに遅れが見られる。とくに、新デフレクター機能の調整が難航している。加えて、新型ARPES装置のディフレクター機能を用いて、膨大なデータが取得されるため、このデータを効率よく整理・解析するために、測定系と連動した解析プログラムを整備する必要性が出てきた。

Strategy for Future Research Activity

強相関量子井戸構造に誘起される2次元電子液体状態の電子（量子化）・スピン（スピン軌道相互作用）・軌道の状態を可視化するために、高輝度放射光の偏光性と光電子検出器の新ディフレクター機能を組み合わせた「スピン・軌道分解ARPES装置」の調整を進める。特に、新デフレクター機能の調整を重点的に行う。それにより、今後は、このスピン・軌道分解ARPES装置を高輝度放射光の偏光と組み合わすことで、１）水平・垂直偏光を用いて量子井戸内の複雑なサブバンド構造を軌道の対称性を指定して分離し、２）右円・左円偏光の2色性を用いてそれらのスピンテクスチャ状態を特定出来るようにして、本研究課題を「スピン・軌道分解ARPES装置」で展開する。

また、既存の装置を用いて、２重量子井戸構造における量子干渉効果を可視化し、その知見に基づいて強相関電子の波動関数を設計する。これにより、新しい原理で動作するモットトランジスタを創成する。

Research Products

• [Int'l Joint Research] ブルツブルグ大学(ドイツ)
• [Int'l Joint Research] パリ南大学/SOLEIL放射光施設(フランス)
• [Int'l Joint Research] パリ南大学/SOLEIL放射光施設(フランス)
• [Int'l Joint Research] フランクフルト大学(ドイツ)
• [Journal Article] Thickness dependence and dimensionality effects of charge and magnetic ordering in La1/3Sr2/3FeO3 thin films (2018)
  • Author(s): K. Yamamoto, Y. Hirata, M. Horio, Y. Yokoyama, K. Takubo, M. Minohara, H. Kumigashira, Y. Yamasaki, H. Nakao, Y. Murakami, A. Fujimori, and H. Wadati
  • Journal Title: PHYSICAL REVIEW B. Volume : 97 Pages : 075134-075134
  • DOI: 10.1103/physrevb.97.075134
  • Peer Reviewed
• [Journal Article] Anisotropic spin-density distribution and magnetic anisotropy of strained La1-xSrxMnO3 thin films: angle-dependent x-ray magnetic circular dichroism (2018)
  • Author(s): G. Shibata, M. Kitamura, M. Minohara, K. Yoshimatsu, T. Kadono, K. Ishigami, T. Harano, Y. Takahashi, S. Sakamoto, Y. Nonaka, K. Ikeda, Z. Chi, M. Furuse, S. Fuchino, M. Okano, J. Fujihira, A. Uchida, K. Watanabe, H. Fujihira, S. Fujihira, A. Tanaka, H. Kumigashira, T. Koide, and A. Fujimori
  • Journal Title: npj Quantum Materials Volume : VOL. 3 Pages : 3-3
  • DOI: 10.1038/s41535-018-0077-4
  • Peer Reviewed / Open Access
• [Journal Article] Observation of a Pseudogap in the Vicinity of the Metal–Insulator Transition in the Perovskite-type Vanadium Oxides Nd1−xSrxVO3 (2018)
  • Author(s): Yamamoto Shintaro、Ootsuki Daiki、Shimonaka Daiya、Shibata Daisuke、Kodera Kenjiro、Okawa Mario、Saitoh Tomohiko、Horio Masafumi、Fujimori Atsushi、Kumigashira Hiroshi、Ono Kanta、Ikenaga Eiji、Miyasaka Shigeki、Tajima Setsuko、Yoshida Teppei
  • Journal Title: J. Phys. Soc. Jpn. Volume : 87 Issue : 2 Pages : 024708-024708
  • DOI: 10.7566/jpsj.87.024708
  • Peer Reviewed
• [Journal Article] Direct observation of double valence-band extrema and anisotropic effective masses of the thermoelectric material SnSe (2018)
  • Author(s): T. Nagayama, K. Terashima, T. Wakita, H. Fujiwara, T. Fukura, Y. Yano, K. Ono, H. Kumigashira, O. Ogiso, A. Yamashita, Y. Takano, H. Mori, H. Usui, M. Ochi, K. Kuroki, Y. Muraoka, and T. Yokoya
  • Journal Title: Japanese Journal of Applied Physics Volume : VOL. 57 Issue : 1 Pages : 010301-010301
  • DOI: 10.7567/jjap.57.010301
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observation of Dirac-Like Energy Band and Ring-Torus Fermi Surface Associated with the Nodal Line in Topological Insulator CaAgAs (2018)
  • Author(s): Takane Daichi、Nakayama Kosuke、Souma Seigo、Wada Taichi、Okamoto Yoshihiko、Takenaka Koshi、Yamakawa Youichi、Yamakage Ai、Mitsuhashi Taichi、Horiba Koji、Kumigashira Hiroshi、Takahashi Takashi、Sato Takafumi
  • Journal Title: npj Quamtum Materials Volume : 3 Pages : 133106-133106
  • DOI: 10.1038/s41535-017-0074-z
  • Peer Reviewed / Open Access
• [Journal Article] Peculiar bonding associated with atomic doping and hidden honeycombs in borophene (2018)
  • Author(s): C.-C. Lee, B. Feng, M. D’angelo, R. Yukawa, R.-Y. Liu, T. Kondo, H. Kumigashira, I. Matsuda, and T. Ozaki
  • Journal Title: Physical Review B Volume : VOL. 97
  • DOI: 10.1103/physrevb.97.075430
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ferromagnetism with strong magnetocrystalline anisotropy in A-site ordered perovskite YBaCo2O6 epitaxial thin films prepared via wet-chemical topotactic oxidation (2018)
  • Author(s): T. Katayama, A. Chikamatsu, Y. Hirose, M. Minohara, H. Kumigashira, I. Harayama, D. Sekibad, and T. Hasegawaa
  • Journal Title: Journal of Materials Chemistry C Volume : VOL. 6 Pages : 3445-3450
  • DOI: 10.1039/c7tc05422j
  • Peer Reviewed
• [Journal Article] Unexpected metal-insulator transition in thick Ca1-xSrxVO3 film on SrTiO3(100) single crystal (2018)
  • Author(s): Takayanagi Makoto、Tsuchiya Takashi、Namiki Wataru、Ueda Shigenori、Minohara Makoto、Horiba Koji、Kumigashira Hiroshi、Terabe Kazuya、Higuchi Tohru
  • Journal Title: Appl. Phys. Lett. Volume : 112 Pages : 133106-133106
  • DOI: 10.1063/1.5021618
  • Peer Reviewed
• [Journal Article] Semimetallic “Electride bands” derived from interlayer electrons in quasi-two-dimensional electride Y2C (2017)
  • Author(s): Horiba Koji、Yukawa Ryu、Mitsuhashi Taichi、Kitamura Miho、Inoshita Takeshi、Hamada Noriaki、Otani Shigeki、Ohashi Naoki、Maki Sachiko、Yamaura Jun-ichi、Hosono Hideo、Murakami Youichi、Kumigashira Hiroshi
  • Journal Title: Phys. Rev. B Volume : 96 Pages : 045101-045101
  • DOI: 10.1103/physrevb.96.045101
  • Peer Reviewed
• [Journal Article] Emergence of quantum critical behavior in metallic quantum-well states of strongly correlated oxides (2017)
  • Author(s): Kobayashi Masaki、Yoshimatsu Kohei、Mitsuhashi Taichi、Kitamura Miho、Sakai Enju、Yukawa Ryu、Minohara Makoto、Fujimori Atsushi、Horiba Koji、Kumigashira Hiroshi
  • Journal Title: Scientific Report Volume : 7 Pages : 16621-16621
  • DOI: 10.1038/s41598-017-16666-x
  • Peer Reviewed / Open Access
• [Journal Article] Quasiparticle Interference on Cubic Perovskite Oxide Surfaces (2017)
  • Author(s): Y. Okada, S.-Y. Shiau, T.-R. Chang, G. Chang, M. Kobayashi, R. Shimizu, H.-T. Jeng, S. Shiraki, H. Kumigashira, A. Bansil, H. Lin, T. Hitosugi
  • Journal Title: Physical Review Letters Volume : VOL. 119 Pages : 086801-086801
  • DOI: 10.1103/physrevlett.119.086801
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dielectric collapse at the LaAlO3/SrTiO3 (001) heterointerface under applied electric field (2017)
  • Author(s): M. Minohara, Y. Hikita, C. Bell, H. Inoue, M. Hosoda, H. K. Sato, H. Kumigashira, M. Oshima, E. Ikenaga, and H. Y. Hwang
  • Journal Title: Sci. Rep. Volume : VOL. 7 Pages : 9516-9516
  • DOI: 10.1038/s41598-017-09920-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ARPES studies of the inverse perovskite Ca3PbO: Experimental confirmation of a candidate 3D Dirac fermion system (2017)
  • Author(s): Obata Yukiko、Yukawa Ryu、Horiba Koji、Kumigashira Hiroshi、Toda Yoshitake、Matsuishi Satoru、Hosono Hideo
  • Journal Title: Phys. Rev. B Volume : 96 Pages : 155109-155109
  • DOI: 10.1103/physrevb.96.155109
  • Peer Reviewed
• [Journal Article] Highly oriented epitaxial CaFe2O4 thin films on TiO2 substrates grown by pulsed-laser deposition (2017)
  • Author(s): Nishiyama Nana、Mashiko Hisanori、Yoshimatsu Kohei、Horiba Koji、Kumigashira Hiroshi、Ohtomo Akira
  • Journal Title: Journal of Crystal Growth Volume : 638 Pages : 406-409
  • DOI: 10.1016/j.tsf.2017.08.003
  • Peer Reviewed
• [Journal Article] Electronic structures and photoanodic properties of ilmenite-type MTiO3 epitaxial films (M = Mn, Fe, Co, Ni) (2017)
  • Author(s): Yoshimatsu K.、Mashiko H.、Umezawa N.、Horiba K.、Kumigashira H.、Ohtomo A.
  • Journal Title: Journal of Physical Chemistry C Volume : 121 Pages : 18717-18724
  • DOI: 10.1021/acs.jpcc.7b06076
  • Peer Reviewed
• [Journal Article] Electron Conduction of Nd0.6Sr0.4FeO3−δ Thin Film with Oxygen Vacancies Prepared by RF Magnetron Sputtering (2017)
  • Author(s): Namiki Wataru、Tsuchiya Takashi、Takayanagi Makoto、Furuichi Shoto、Minohara Makoto、Kobayashi Masaki、Horiba Koji、Kumigashira Hiroshi、Higuchi Tohru
  • Journal Title: J. Phys. Soc. Jpn. Volume : 86 Issue : 7 Pages : 074704-074704
  • DOI: 10.7566/jpsj.86.074704
  • Peer Reviewed
• [Journal Article] Thickness-dependent surface proton conduction in (111) oriented Yttria-stabilized Zirconia thin film (2017)
  • Author(s): Takayanagi Makoto、Tsuchiya Takashi、Kawamura Kinya、Minohara Makoto、Horiba Koji、Kumigashira Hiroshi、Higuchi Tohru
  • Journal Title: Solid State Ionic Volume : 311 Pages : 46-51
  • DOI: 10.1016/j.ssi.2017.09.003
  • Peer Reviewed
• [Journal Article] Electronic structure and polar catastrophe at the surface of LixCoO2 studied by angle-resolved photoemission spectroscopy (2017)
  • Author(s): Okamoto Y.、Matsumoto R.、Yagihara T.、Iwai C.、Miyoshi K.、Takeuchi J.、Horiba K.、Kobayashi M.、Ono K.、Kumigashira H.、Saini N. L.、Mizokawa T.
  • Journal Title: Phys. Rev. B Volume : 96 Pages : 125147-125147
  • DOI: 10.1103/physrevb.96.125147
  • Peer Reviewed
• [Journal Article] Evidence for magneticWeyl fermions in a correlated metal (2017)
  • Author(s): Kuroda K.、Tomita T.、Suzuki M.-T.、Bareille C.、Nugroho A. A.、Goswami P.、Ochi M.、Ikhlas M.、Nakayama M.、Akebi S.、Noguchi R.、Ishii R.、Inami N.、Ono K.、Kumigashira H.、Varykhalov A.、Muro T.、Koretsune T.、Arita R.、Shin S.、Kondo Takeshi、Nakatsuji S.
  • Journal Title: Nat. Mater. Volume : 16 Pages : 1090-1095
  • DOI: 10.1038/nmat4987
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Three-dimensional band structure of LaSb and CeSb: Absence of band inversion (2017)
  • Author(s): Oinuma H.、Souma S.、Takane D.、Nakamura T.、Nakayama K.、Mitsuhashi T.、Horiba K.、Kumigashira H.、Yoshida M.、Ochiai A.、Takahashi T.、Sato T.
  • Journal Title: Phy. Rev. B Volume : 96 Pages : 041120-041120
  • DOI: 10.1103/physrevb.96.041120
  • Peer Reviewed
• [Journal Article] Ultrafast melting of spin density wave order in BaFe2As2 observed by time- and angle-resolved photoemission spectroscopy with extreme-ultraviolet higher harmonic generation (2017)
  • Author(s): H. Suzuki, K. Okazaki, T. Yamamoto, T. Someya, M. Okada, K. Koshiishi, M. Fujisawa, T. Kanai, N. Ishii, M. Nakajima, H. Eisaki, K. Ono, H. Kumigashira, J. Itatani, A. Fujimori and S. Shin
  • Journal Title: Physical Review B Volume : 95 Pages : 165112-165112
  • DOI: 10.1103/physrevb.95.165112
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Orbital-Dependent Band Renormalization in BaNi2(As1−xPx)2 (x = 0.00 and 0.092) (2017)
  • Author(s): Noda Tomohiro、Kudo Kazutaka、Takasuga Masaya、Nohara Minoru、Sugimoto Takuya、Ootsuki Daiki、Kobayashi Masaki、Horiba Koji、Ono Kanta、Kumigashira Hiroshi、Fujimori Atsushi、Saini Naurang L.、Mizokawa Takashi
  • Journal Title: J. Phys. Soc. Jpn. Volume : 86 Issue : 6 Pages : 064708-064708
  • DOI: 10.7566/jpsj.86.064708
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Amorphous gallium oxide as an improved host for inorganic light-emitting thin film semiconductor fabricated at room temperature on glass (2017)
  • Author(s): N. Watanabe, J. Kim, K. Ide, H. Hiramatsu, H. Kumigashira, S. Ueda, H. Hosono, T. Kamiya
  • Journal Title: ECS Journal of Solid State Science and Technology Volume : 6 Pages : 410-414
  • DOI: 10.1149/2.0181707jss
  • Peer Reviewed
• [Journal Article] Hole-proton mixed conduction of Perovskite-oxide thin film with oxygen vacancies and lattice distortion for SOFC electrod (2017)
  • Author(s): Higuchi Tohru、Furuichi Shoto、Namiki Wataru、Takayanagi Makoto、Minohara Makoto、Horiba Koji、Kumigashira Hiroshi、Tsuchiya Takashi
  • Journal Title: ECS Trans. Volume : 78 Pages : 1973-1977
  • DOI: 10.1149/07801.1973ecst
  • Peer Reviewed
• [Journal Article] Proton Conduction on YSZ Electrolyte Thin Films Prepared by RF Magnetron Sputtering (2017)
  • Author(s): M. Takayanagi, S. Furuichi, W. Namiki, T. Tsuchiya, M. Minohara, M. Kobayashi, K. Horiba, H. Kumigashira, and T. Higuchi
  • Journal Title: ECS Transactions Volume : VOL. 75 Pages : 115-120
  • DOI: 10.1149/07542.0115ecst
  • Peer Reviewed
• [Journal Article] Electron-ion mixed conduction of Nd0.6Sr0.4FeO3 cathode electrode thin film for solid oxide fuel cell (2017)
  • Author(s): Namiki Wataru、Takayanagi Makoto、Furuichi Shoto、Tsuchiya Takashi、Minohara Makoto、Kobayashi Masaki、Horiba Koji、Kumigashira Hiroshi、Higuchi Tohru
  • Journal Title: ECS Trans. Volume : 75 Pages : 83-88
  • DOI: 10.1149/07542.0083ecst
  • Peer Reviewed
• [Journal Article] Ion conduction of BaPrO3-δ thin film with mixed valence state for SOFC anode electrode (2017)
  • Author(s): Furuichi Shoto、Tsuchiya Takashi、Minohara Makoto、Kobayashi Masaki、Horiba Koji、Kumigashira Hiroshi、Higuchi Tohru
  • Journal Title: ECS Trans. Volume : 75 Pages : 99-103
  • DOI: 10.1149/07542.0099ecst
  • Peer Reviewed
• [Journal Article] Surface Electronic Structure of Proton-doped YSZ Thin Film by Soft-X-ray Photoemission Spectroscopy (2017)
  • Author(s): M. Takayanagi, T. Tsuchiya, M. Minohara, M. Kobayashi, K. Horiba, H. Kumigashira, and T. Higuchi
  • Journal Title: Trans. Mat. Res. Soc. Japan Volume : VOL. 42 Issue : 3 Pages : 61-64
  • DOI: 10.14723/tmrsj.42.61
  • Peer Reviewed
• [Journal Article] Oxide Ion Conduction of BaCe_0.80Zr_0.10Y_0.10O_3-δ Thin Film with Oxygen Vacancies (2017)
  • Author(s): M. Ochi, N. Miyakawa, M. Minohara, K. Horiba, H. Kumigashira, and T. Higuchi
  • Journal Title: Trans. Mat. Res. Soc. Japan Volume : VOL. 42 Issue : 4 Pages : 97-100
  • DOI: 10.14723/tmrsj.42.97
  • Peer Reviewed
• [Journal Article] Structural and Electrical Properties of BaPrO_3-<i>δ</i> Thin Film with Oxygen Vacancies (2017)
  • Author(s): S. Furuichi, T. Tsuchiya, K. Horiba, M. Kobayashi, M. Minohara, H. Kumigashira, and T. Higuchi
  • Journal Title: Trans. Mater. Res. Soc. Japan Volume : VOL. 42 Issue : 2 Pages : 15-18
  • DOI: 10.14723/tmrsj.42.15
  • Peer Reviewed
• [Journal Article] Temperature dependence of Yb valence in the sub-surface of YbB12(001) (2017)
  • Author(s): K. Hagiwara, Y. Takeno, Y. Ohtsubo, R. Yukawa, M. Kobayashi, K. Horiba, H. Kumigashira, J. Rault, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi, F. Iga, S. Kimura
  • Journal Title: J. Phys.: Conf. Ser. Volume : 807 Pages : 012003-012003
  • DOI: 10.1088/1742-6596/807/1/012003
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Angle-Resolved Photoemission Spectroscopy Utilizing Characteristics of Synchrotron Radiation (2017)
  • Author(s): 堀場 弘司、組頭 広志
  • Journal Title: 表面科学 Volume : 38 Issue : 11 Pages : 553-558
  • DOI: 10.1380/jsssj.38.553
  • Peer Reviewed
• [Journal Article] Novel Two-Dimensional Electron Liquid States in Quantum Well Structures of Strongly Correlated Oxides (2017)
  • Author(s): 組頭 広志
  • Journal Title: 表面科学 Volume : VOL. 38, No. 12 Issue : 12 Pages : 596-601
  • DOI: 10.1380/jsssj.38.596
  • Peer Reviewed
• [Journal Article] Ce 4f electronic states of CeO1-xFxBiS2 studied by soft X-ray photoemission spectroscopy (2017)
  • Author(s): T. Wakita, K. Terashima, T. Hamada, H. Fujiwara, M. Minohara, M. Kobayashi, K. Horiba, H. Kumigashira, G. Kutluk, M. Nagao, S. Watauchi, I. Tanaka, S. Demura, H. Okazaki, Y. Takano, Y. Mizuguchi, O. Miura, K. Okada, Y. Muraoka, T. Yokoya
  • Journal Title: Phys. Rev. B Volume : 95 Pages : 085109-085109
  • DOI: 10.1103/physrevb.95.085109
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Dirac Fermions in Borophene (2017)
  • Author(s): Baojie Feng, Osamu Sugino, Ro-Ya Liu, Jin Zhang, Ryu Yukawa, Mitsuaki Kawamura, Takushi Iimori, Howon Kim, Yukio Hasegawa, Hui Li, Lan Chen, Kehui Wu, Hiroshi Kumigashira, Fumio Komori, Tai-Chang Chiang, Sheng Meng, Iwao Matsuda
  • Journal Title: Physical Review Letters Volume : 118 Pages : 096401-096401
  • DOI: 10.1103/physrevlett.118.096401
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Interlayer states arising from anionic electrons in the honeycomb-lattice-based compounds AeAlSi (Ae = Ca, Sr, Ba) (2017)
  • Author(s): Yangfan Lu, Tomofumi Tada, Yoshitake Toda, Shigenori Ueda, Jiazhen Wu, Jiang Li, Koji Horiba, Hiroshi Kumigashira, Yaoqing Zhang, and Hideo Hosono
  • Journal Title: Physical Review B Volume : 95
  • DOI: 10.1103/physrevb.95.125117
  • Peer Reviewed
• [Journal Article] Reversible changes in resistance of perovskite nickelate NdNiO3 thin films induced by fluorine substitution (2017)
  • Author(s): Tomoya Onozuka, Akira Chikamatsu, Tsukasa Katayama, Yasushi Hirose, Isao Harayama, Daiichiro Sekiba, Eiji Ikenaga, Makoto Minohara, Hiroshi Kumigashira, and Tetsuya Hasegawa
  • Journal Title: ACS Appl. Mater. Interfaces Volume : 9 Pages : 10882-10887
  • DOI: 10.1021/acsami.7b00855
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Resonant photoemission and X-ray absorption spectroscopies of lithiated magnetite thin film (2017)
  • Author(s): T. Tsuchiya, K. Kawamura, W. Namiki, S. Furuichi, M. Takayanagi, M. Minohara, M. Kobayashi, K. Horiba, H. Kumigashira, K. Terabe and T. Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume : 56 Issue : 4S Pages : 04CK01-04CK01
  • DOI: 10.7567/jjap.56.04ck01
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Influence of broadening on ARPES spectra of the (110) and (001) surfaces of films (2016)
  • Author(s): T. Mitsuhashi, M. Minohara, R. Yukawa, M. Kitamura, K. Horiba, M. Kobayashi, and H. Kumigashira
  • Journal Title: Physical Review B Volume : 94 Pages : 125148-125148
  • DOI: 10.1103/physrevb.94.125148
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Thickness-dependent physical properties of La1/3Sr2/3FeO3 thin films grown on SrTiO3 (001) and (111) substrates (2016)
  • Author(s): Makoto Minohara, Miho Kitamura, Hiroki Wadati, Hironori Nakao, Reiji Kumai, Youichi Murakami, and Hiroshi Kumigashira
  • Journal Title: J. Appl. Phys. Volume : 120 Pages : 025303-025303
  • DOI: 10.1063/1.4958670
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Correlated electronic states of SrVO 3 revealed by angle-resolved photoemission spectroscopy (2016)
  • Author(s): T. Yoshida, M. Kobayashi, K. Yoshimatsu, H. Kumigashira, A. Fujimori
  • Journal Title: J. Electron Spectr. Rel. Phenom. Volume : 208 Pages : 11-16
  • DOI: 10.1016/j.elspec.2015.11.012
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Phonon-dressed two-dimensional carriers on the ZnO surface (2016)
  • Author(s): R. Yukawa, K. Ozawa, S. Yamamoto, H. Iwasawa, K. Shimada, E. F. Schwier, K. Yoshimatsu, H. Kumigashira, H. Namatame, M. Taniguchi, and I. Matsuda
  • Journal Title: Phys. Rev. B Volume : 94
  • DOI: 10.1103/physrevb.94.165313
  • Peer Reviewed
• [Journal Article] Tailoring Photovoltage Response at SrRuO3/SrTiO3Heterostructures (2016)
  • Author(s): Ryu Yukawa, Susumu Yamamoto, Kazuma Akikubo, Kaori Takeuchi, Kenichi Ozawa, Hiroshi Kumigashira, and Iwao Matsuda
  • Journal Title: Adv. Mater. Interf. Volume : 3 Pages : 1600527-1600527
  • DOI: 10.1002/admi.201600527
  • Peer Reviewed
• [Journal Article] Hubbard band versus oxygen vacancy states in the correlated electron metal SrVO3 (2016)
  • Author(s): S. Backes, T. C. Rodel, F. Fortuna, E. Frantzeskakis, P. Le Fevre, F. Bertran, M. Kobayashi, R. Yukawa, T. Mitsuhashi, M. Kitamura, K. Horiba, H. Kumigashira, R. Saint-Martin, A. Fouchet, B. Berini, Y. Dumont, A. J. Kim, F. Lechermann, H. O. Jeschke, M. J. Rozenberg, R. Valenti, and A. F. Santander-Syro
  • Journal Title: Physical Review B Volume : 94 Pages : 241110-241110
  • DOI: 10.1103/physrevb.94.241110
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Photoelectrochemical water splitting enhanced by self-assembled metalnanopillars embedded in an oxide semiconductor photoelectrode (2016)
  • Author(s): S. Kawasaki, R. Takahashi, T. Yamamoto, M. Kobayashi, H. Kumigashira, J. Yoshinobu, F. Komori, A. Kudo, and M. Lippmaa
  • Journal Title: Nat. Comnun. Volume : 7 Pages : 11818-11818
  • DOI: 10.1038/ncomms11818
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Epitaxial synthesis and physical properties of double-perovskite oxide Sr2CoRuO6thin films (2016)
  • Author(s): K. Watarai, K. Yoshimatsu, K. Horiba, H. Kumigashira, O. Sakata, and A. Ohtomo
  • Journal Title: J. Phys.: Condens. Matter. Volume : 28 Pages : 436005-436005
  • DOI: 10.1088/0953-8984/28/43/436005
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Experimental and theoretical investigation of electronic structure of SrFeO3−xFxepitaxial thin films prepared via topotactic reaction (2016)
  • Author(s): T. Katayama, A. Chikamatsu, H. Kamisaka, H. Kumigashira, and T. Hasegawa
  • Journal Title: Appl. Phys. Express Volume : 9 Issue : 2 Pages : 025801-025801
  • DOI: 10.7567/apex.9.025801
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Epitaxial growth and electronic structure of oxyhydride SrVO2H thin films (2016)
  • Author(s): T. Katayama, A. Chikamatsu, K. Yamada, K. Shigematsu, T. Onozuka, M. Minohara, H. Kumigashira, E. Ikenaga, and T. Hasegawa
  • Journal Title: J. Appl. Phys. Volume : 120 Pages : 085305-085305
  • DOI: 10.1063/1.4961446
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electron–Ion Mixed Conduction of BaCe0.90Y0.10O3−δ Thin Film Generated by Ru Substitution (2016)
  • Author(s): Masanori Ochi, Takashi Tsuchiya, Shohei Yamaguchi, Takaaki Suetsugu, Naoya Suzuki, Masaki Kobayashi, Makoto Minohara, Koji Horiba, Hiroshi Kumigashira, Tohru Higuchi
  • Journal Title: J. Phys. Soc. Jpn. Volume : 85 Issue : 3 Pages : 034705-034705
  • DOI: 10.7566/jpsj.85.034705
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electrical and structural properties of BaCe0.85Ru0.05Y0.10O3−δthin film prepared by RF magnetron sputtering (2016)
  • Author(s): Masanori Ochi, Takashi Tsuchiya, Shohei Yamaguchi, Takaaki Suetsugu, Naoya Suzuki, Masaki Kobayashi, Makoto Minohara, Koji Horiba, Hiroshi Kumigashira, Tohru Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume : 55 Issue : 6S1 Pages : 06GJ02-06GJ02
  • DOI: 10.7567/jjap.55.06gj02
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electronic structure of c-axis controlled α-Fe2O3 thin film probed by soft-X-ray spectroscopy (2016)
  • Author(s): Kinya Kawamura, Naoya Suzuki, Takashi Tsuchiya, Shohei Yamaguchi, Masanori Ochi, Takaaki Suetsugu, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira and Tohru Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume : 55 Issue : 6S1 Pages : 06GJ04-06GJ04
  • DOI: 10.7567/jjap.55.06gj04
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electrical and structural properties of TiO2−δthin film with oxygen vacancies prepared by RF magnetron sputtering using oxygen radical (2016)
  • Author(s): Kinya Kawamura, Naoya Suzuki, Takashi Tsuchiya, Yuichi Shimazu, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira, Tohru Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume : 55 Issue : 6S1 Pages : 06GJ08-06GJ08
  • DOI: 10.7567/jjap.55.06gj08
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Metal–insulator transition of valence-controlled VO2thin film prepared by RF magnetron sputtering using oxygen radical (2016)
  • Author(s): T. Suetsugu, Y. Shimazu, T. Tsuchiya, M. Kobayashi, M. Minohara, E. Sakai, K. Horiba, H. Kumigashira, and T. Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume : 55 Issue : 6S1 Pages : 06GJ11-06GJ11
  • DOI: 10.7567/jjap.55.06gj11
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ce Core-Level Spectroscopy, and Magnetic and Electrical Transport Properties of Lightly Ce-Doped YCoO3 (2016)
  • Author(s): Yoshihiko Kobayashi, Tsuyoshi Koike, Mario Okawa, Ryohei Takayanagi, Shohei Takei, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira, Akira Yasui, Eiji Ikenaga, Tomohiko Saitoh, and Kichizo Asai
  • Journal Title: J. Phys. Soc. Jpn. Volume : 85 Issue : 11 Pages : 114704-114704
  • DOI: 10.7566/jpsj.85.114704
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Epitaxial growth and electric properties of γ-Al2O3(110) films on β-Ga2O3(010) substrates (2016)
  • Author(s): M. Hattori, T. Oshima, R. Wakabayashi, K. Yoshimatsu, K. Sasaki, T. Masui, A. Kuramata, S. Yamakoshi, K. Horiba, H. Kumigashira, A. Ohtomo
  • Journal Title: Japanese Journal of Applied Physics Volume : 55 Issue : 12 Pages : 1202B6-1202B6
  • DOI: 10.7567/jjap.55.1202b6
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Suppression of the antiferromagnetic pseudogap in the electron-doped high-temperature superconductor by protect annealing (2016)
  • Author(s): M. Horio, T. Adachi, Y. Mori, A. Takahashi, T. Yoshida, H. Suzuki, L. C. C. Ambolode II, K. Okazaki, K. Ono, H. Kumigashira, H. Anzai, M. Arita, H. Namatame, M. Taniguchi, D. Ootsuki, K. Sawada, M. Takahashi, T. Mizokawa, Y. Koike, A. Fujimori
  • Journal Title: Nat. Comm. Volume : 7 Pages : 10567-10567
  • DOI: 10.1038/ncomms10567
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Slater to Mott Crossover in the Metal to Insulator Transition ofNd2Ir2O7 (2016)
  • Author(s): M. Nakayama, Takeshi Kondo, Z. Tian, -J. Ishikawa, M. Halim, C. Bareille, W. Malaeb, K. Kuroda, T. Tomita, S. Ideta, K. Tanaka, M. Matsunami, S. Kimura, N. Inami, K. Ono, H. Kumigashira, L. Balents, S. Nakatsuji, and S. Shin
  • Journal Title: Physical Review Letter Volume : 117 Pages : 056403-056403
  • DOI: 10.1103/physrevlett.117.056403
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Surface Kondo effect and non-trivial metallic state of the Kondo Insulator YbB12 (2016)
  • Author(s): K. Hagiwara, Y. Ohtsubo, M. Matsunami, S. Ideta, K. Tanaka, H. Miyazaki, J. Rault, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi, R. Yukawa, M. Kobayashi, K. Horiba, H. Kumigashira, K. Sumida, T. Okuda, F. Iga, S. Kimura
  • Journal Title: Nat. Comm. Volume : 7
  • DOI: 10.1038/ncomms12690
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Current status of BL-2B at photon factory (2016)
  • Author(s): A. Nambu, K. Ueda, K. Horiba, K. Tsuchiya, H. Kumigashira, and K. Amemiya
  • Journal Title: AIP Conference Proceedings Volume : 1741
  • DOI: 10.1063/1.4952864
  • Peer Reviewed
• [Journal Article] Comparative ARPES studies of LaOxF1?xBiS2(x = 0.23 and 0.46) (2016)
  • Author(s): K. Terashima, T. Wakita, M. Sunagawa, H. Fujiwara, T. Nagayama, K. Ono, H. Kumigashira, M. Nagao, S. Watauchi, I. Tanaka, H. Okazaki, Y. Takano, Y. Mizuguchi, H. Usui, K. Kuroki, Y. Muraoka, T. Yokoya
  • Journal Title: J. Phys.: Conference Series Volume : 683 Pages : 012002-012002
  • DOI: 10.1088/1742-6596/683/1/012002
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Microscopic Observation of Degradation of LaNiO₃Ultrathin Films Caused by Air Exposure (2016)
  • Author(s): Y. Wakabayashi, H. Maeda, T. Kimura, O. Sakata, E. Sakai, and H. Kumigashira
  • Journal Title: e-Journal Surf. Sci. Nanotechnol. Volume : 14 Issue : 0 Pages : 14-16
  • DOI: 10.1380/ejssnt.2016.14
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 角度分解光電子分光によるY2Cの2次元エレクトライド電子状態の実証 (2018)
  • Author(s): 堀場弘司，湯川龍，三橋太一，北村未歩，井下猛，浜田典昭，大谷茂樹， 大橋直樹，真木祥千子，山浦淳一，細野秀雄，村上洋一，組頭広志
  • Organizer: 第31回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] K蒸着によるVO2薄膜の金属絶縁体転移制御 (2018)
  • Author(s): 志賀大亮，簔原誠人，北村未歩，湯川龍，三橋太一，堀場弘司，組頭広志
  • Organizer: 第31回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] パルスレーザー堆積法によるアンチペロブスカイト型酸化物Ca3SnO薄膜の作製 (2018)
  • Author(s): 簑原誠人，湯川龍，北村未歩，熊井玲児，村上洋一，組頭広志
  • Organizer: 第31回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] 酸化物表面・界面評価と新機能探索 (2018)
  • Author(s): 組頭広志
  • Organizer: 第56回セラミックス基礎科学討論会
  • Invited
• [Presentation] アンチペロブスカイト酸化物における電子機能探索 (2018)
  • Author(s): 組頭広志
  • Organizer: 2017年度量子ビームサイエンスフェスタ
  • Invited
• [Presentation] ペロブスカイト型遷移金属酸化物ヘ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] K蒸着によるVO2薄膜の金属・絶縁体転移制御 (2018)
  • Author(s): 志賀大亮、 簔原誠人、 北村未歩、湯川龍、三橋太一、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] 酸化物量子井戸構造を用いた低次元量子物質の開発 (2017)
  • Author(s): 組頭広志
  • Organizer: 第2回固体化学フォーラム研究会
  • Invited
• [Presentation] 放射光解析に基づく量子物質開発“Materials by design” (2017)
  • Author(s): 組頭広志
  • Organizer: H29年度九州表面・真空研究会
  • Invited
• [Presentation] Synchrotron radiation ARPES study of emerging materials (2017)
  • Author(s): K. Horiba
  • Organizer: Collaborative Confeence on Materials Research (CCMR) 2017
  • Int'l Joint Research / Invited
• [Presentation] Origin of interfacial ferromagnetism between perovskite oxides LaNiO3 and LaMnO3 (2017)
  • Author(s): M. Kitamura, K. Horiba, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, T. Mitsuhashi, D. Shiga, K. Amemiya, T. Nagai, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, and H. Kumigashira
  • Organizer: The 15th International Conference on Advanced Materials
  • Int'l Joint Research / Invited
• [Presentation] Charge distribution and ferromagnetism at the heterointerface between perovskite oxides LaNiO3 and LaMnO3 (2017)
  • Author(s): M. Kitamura, K. Horiba, M. Kobayashi, E. Sakai, M. Minohara, R. Yukawa, T. Mitsuhashi, D. Shiga, K. Amemiya, T. Nagai, Y. Nonaka, G. Shibata, A. Fujimori, H. Fujioka, and H. Kumigashira
  • Organizer: 第78回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Breakdown of Fermi Liquid Behavior in the 2D Limit of Metallic Quantum Well States of Strongly Correlated Oxides (2017)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: European Materials Research Society (E-MRS)
  • Int'l Joint Research / Invited
• [Presentation] Growth of antiperovskite-type oxide Ca3SnO thin films by pulsed laser deposition (2017)
  • Author(s): M. Minohara, R. Yukawa, M. Kitamura, R. Kumai, Y. Murakami, and H. Kumigashira
  • Organizer: International Workshop on Oxide Electronics (iWOE-24)
  • Int'l Joint Research
• [Presentation] Two-dimensional electron liquid states at the K-adsorbed anatase-TiO2 (001) surface (2017)
  • Author(s): R. Yukawa, M. Minohara, D. Shiga, M. Kitamura, T. Mitsuhashi, M. Kobayashi, K. Horiba, and H. Kumigashira
  • Organizer: International Workshop on Oxide Electronics (iWOE-24)
  • Int'l Joint Research
• [Presentation] Control of the metal-insulator transition in VO2thin films by K deposition (2017)
  • Author(s): Daisuke Shiga, M. Minohara, M. Kitamura, R. Yukawa, T. Mitsuhashi, K. Horiba, and H. Kumigashira
  • Organizer: International Workshop on Oxide Electronics (iWOE-24)
  • Int'l Joint Research
• [Presentation] In Situ Synchrotron ARPES Study on Manganite Thin Films (2017)
  • Author(s): K. Horiba
  • Organizer: The 7th Annual World Congress of Nano Science and Technology-2017
  • Int'l Joint Research / Invited
• [Presentation] 面方位制御La1/3Sr2/3FeO3 薄膜における電荷不均化の膜厚依存性 (2017)
  • Author(s): 簔原誠人，北村未歩，和達大樹，中尾裕則，熊井玲児，村上洋一，組頭広志
  • Organizer: 第30回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] ペロブスカイト酸化物LaNiO3/LaMnO3へテロ構造における界面強磁性の起源解明 (2017)
  • Author(s): 北村未歩,堀場弘司,小林正起,坂井延寿,簔原誠人,湯川龍,三橋太一,雨宮健太, 野中洋亮, 芝田悟朗, 藤森淳, 藤岡洋, 組頭広志
  • Organizer: 第30回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] K吸着Anatase TiO2(001)表面の2次元電子状態 (2017)
  • Author(s): 湯川龍,簔原誠人,三橋太一,北村未歩,小林正起,堀場弘司,組頭広志
  • Organizer: 第30回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] SrVO3(110)および(001)薄膜のARPESスペクトルにおけるk⊥-broadeningの影響 (2017)
  • Author(s): 三橋太一,簔原誠人,湯川龍,北村未歩,堀場弘司,小林正起,組頭広志
  • Organizer: 第30回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] PLD法によるアンチペロブスカイト型酸化物Ca3SnO薄膜の作製 (2017)
  • Author(s): 簑原 誠人 、湯川 龍 、組頭 広志
  • Organizer: 第64回応用物理学会春季学術講演会
• [Presentation] K蒸着によるVO2薄膜の金属絶縁体転移制御 (2017)
  • Author(s): 志賀大亮, 簔原誠人, 三橋太一, 北村未歩, 湯川龍, 堀場弘司, 組頭広志
  • Organizer: 日本物理学会第72回年次大会
• [Presentation] K吸着したAnatase-TiO2 (001)表面の電子構造 (2017)
  • Author(s): 湯川龍, 簑原誠人, 三橋太一, 北村未歩, 小林正起, 堀場弘司, 組頭広志
  • Organizer: 日本物理学会第72回年次大会
• [Presentation] In situ angle-resolved photoemission study on manganite thin films (2016)
  • Author(s): Koji Horiba
  • Organizer: EMN Croatia Meeting
  • Int'l Joint Research / Invited
• [Presentation] Construction of wide-energy-range VUV-SX beamline BL-2 MUSASHI at KEK-PF (2016)
  • Author(s): K. Horiba, M. Minohara, T. Mitsuhashi, K. Amemiya, A. Yagishita, Y. Kitajima,A. Toyoshima, H. Tanaka, T. Kikuchi, T. Mori, Y. Saito, K. Nigorikawa, Y. Nagatani,T. Kosuge, and H. Kumigashira
  • Organizer: 39th International Conference on Vacuum Ultraviolet and X-ray Physics (VUVX2016)
  • Int'l Joint Research
• [Presentation] In situ angle-resolved photoemission study on K-adsorbed anatase TiO2 (001) surfaces (2016)
  • Author(s): R.Yukawa, M.Minohara, T.Mituhashi, M.Kitamura, M.Kobayashi, K.Horiba, H.Kumigashira
  • Organizer: 39th International conference on Vacuum Ultraviolet and X-ray Physics
  • Int'l Joint Research
• [Presentation] Charge transfer phenomena across the heterointerface between perovskite oxides LaNiO3 and LaMnO3 (2016)
  • Author(s): Miho Kitamura, Koji Horiba, Masaki Kobayashi, Enju Sakai, Makoto Minohara, Taichi Mitsuhashi, Atsushi Fujimori, Takuro Nagai, Hiroshi Fujioka, and Hiroshi Kumigashira
  • Organizer: 39th International Conference on Vaccum Ultraviolet and X-ray Physics (VUVX2016)
  • Int'l Joint Research
• [Presentation] Influence of the “k⊥-broadening” on ARPES spectra of the (110) surface of SrVO3 thin films (2016)
  • Author(s): T.Mitsuhashi, M.Minohara, R.Yukawa, M.Kitamura, K.Horiba, M.Kobayashi, H.Kumigashira
  • Organizer: 39th International Conference on Vaccum Ultraviolet and X-ray Physics (VUVX2016)
  • Int'l Joint Research
• [Presentation] Isotropic kink in La0.6Sr0.4MnO3 thin films studied by in situ angle-resolved photoemission spectroscopy (2016)
  • Author(s): K. Horiba, M. Kitamura, K. Yoshimatsu, M. Minohara, E. Sakai, M. Kobayashi,A. Fujimori, H. Kumigashira
  • Organizer: 39th International Conference on Vacuum Ultraviolet and X-ray Physics (VUVX2016)
  • Int'l Joint Research
• [Presentation] Novel two-dimensional electron liquid states in quantum well structures of strongly correlated oxides (2016)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: New horizons on redox processes on oxide surfaces- advanced spectroscopies and beyond
  • Int'l Joint Research / Invited
• [Presentation] 広エネルギー帯域VUV-SXビームライン KEK-PF BL-2 MUSASHIの性能と研究展開 (2016)
  • Author(s): 堀場弘司, 簔原誠人, 三橋太一, 湯川龍, 北村未歩, 小林正起, 豊島章雄, 田中宏和, 雨宮健太, 組頭広志
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] ペロブスカイト酸化物LaNiO3/LaMnO3へテロ界面における界面強磁性の発現 (2016)
  • Author(s): 北村未歩, 堀場弘司, 小林正起, 坂井延寿, 簔原誠人, 湯川龍, 三橋太一, 雨宮健太, 藤森淳, 藤岡洋, 組頭広志, 野中洋亮, 芝田悟朗
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 酸化物量子井戸構造に誘起される新奇な2次元電子液体状態 (2016)
  • Author(s): 組頭広志
  • Organizer: 日本物理学会2016年秋季大会
  • Invited
• [Presentation] Thickness Dependent Physical Properties of La1/3Sr2/3FeO3 Thin Films Grown on SrTiO3 (001) and (111) Substrates (2016)
  • Author(s): M. Minohara, M. Kitamura, H. Wadati, H. Nakao, R, Kumai, Y. Murakami, and H. Kumigashira
  • Organizer: International Workshop on Oxide Electronics 23
  • Int'l Joint Research
• [Presentation] Novel two-dimensional electron liquid states in quantum well structures of strongly correlated oxides (2016)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: International symposium on revolutionary atomic-layer materials
  • Invited
• [Remarks] 高エネルギー加速器研究機構 物質構造科学研究所 放射光科学研究施設 組頭研究室
  • URL: http://oxides.kek.jp
• [Remarks] ミラー対称性による 新型トポロジカル絶縁体を発見 -高効率電子デバイスの開発に光-
  • URL: https://www.kek.jp/ja/newsroom/attic/pressrelease20180111.pdf
• [Remarks] 組頭研究室ホームページ
  • URL: http://oxides.kek.jp
• [Remarks] 新しい単原子シート「ボロフェン」の中に質量ゼロ粒子を発見
  • URL: https://www.kek.jp/ja/NewsRoom/Release/2017/02/20/pressrelease20170220.pdf
• [Remarks] 北村未歩 博士研究員が2016年度 第11回 「ロレアル-ユネスコ女性科学者 日本奨励賞」を受賞
  • URL: http://news.nihon-loreal.jp/csr/fwis/ceremony2016.php