Anomalous quantization behavior of strongly correlated electrons in oxide quantum-well structures

• Project/Area Number: 25287095
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: KUMIGASHIRA Hiroshi 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, 教授 (00345092)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000); Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2013: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
• Keywords: 量子井戸構造 / 強相関エレクトロニクス / 角度分解光電子分光 / 強相関電子系 / 機能性酸化物 / フェルミオロジー / バンド構造 / 酸化物エレクトロニクス / 酸化物 / 超構造 / 量子化

Outline of Final Research Achievements

Quantum confinement of strongly correlated electrons in oxide artificial structures has attracted considerable interest for its potential application in future oxide electronics, and also for providing the opportunity to better understand the fundamental low-dimensional physics of strongly correlated electron systems. In this study, in order to clarify the anomalous behavior of the strongly correlated electrons confined in SrVO3 quantum well (QW) structures, we have investigated their quantized states in terms of in-situ angle resolved photoelectron spectroscopy (ARPES). The detailed analysis of ARPES data has revealed the close relationship between the orbirtal-selective quantization characteristic of the oxide QW and the anomalous quantum phenomena such as subband-dependent mass enhancements. The present study demonstrates that the QW structure of strongly correlated oxide will provide a platform for manipulating novel quantum phenomena in reduced dimensions.

Research Products

• [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)
• [Int'l Joint Research] パリ南大学/CNRS/Synchrotron SOLEIL(フランス)
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• [Journal Article] Tailoring Photovoltage Response at SrRuO3/SrTiO3Heterostructures (2016)
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• [Journal Article] Hubbard band versus oxygen vacancy states in the correlated electron metal SrVO3 (2016)
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• [Journal Article] Epitaxial synthesis and physical properties of double-perovskite oxide Sr2CoRuO6thin films (2016)
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• [Journal Article] Electronic structure of c-axis controlled α-Fe2O3 thin film probed by soft-X-ray spectroscopy (2016)
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• [Journal Article] Metal–insulator transition of valence-controlled VO2thin film prepared by RF magnetron sputtering using oxygen radical (2016)
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  • Journal Title: Japanese Journal of Applied Physics Volume: 55 Issue: 6S1 Pages: 06GJ11-06GJ11
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• [Journal Article] Ce Core-Level Spectroscopy, and Magnetic and Electrical Transport Properties of Lightly Ce-Doped YCoO3 (2016)
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• [Journal Article] Epitaxial growth and electric properties of γ-Al2O3(110) films on β-Ga2O3(010) substrates (2016)
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• [Journal Article] Slater to Mott Crossover in the Metal to Insulator Transition ofNd2Ir2O7 (2016)
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• [Journal Article] Surface Kondo effect and non-trivial metallic state of the Kondo Insulator YbB12 (2016)
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• [Journal Article] Current status of BL-2B at photon factory (2016)
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• [Journal Article] Comparative ARPES studies of LaOxF1?xBiS2(x = 0.23 and 0.46) (2016)
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• [Journal Article] Isotropic kink and quasiparticle excitations in the three-dimensional perovskite manganite La0.6Sr0.4MnO3 (2016)
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• [Journal Article] Spatial distribution of transferred charge across the heterointerface between perovskite transition metal oxides LaNiO3 and LaMnO3 (2016)
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• [Journal Article] Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Strongly Correlated Oxide SrVO3 (2015)
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• [Journal Article] Controlling band alignments by artificial interface dipoles at perovskite heterointerfaces (2015)
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• [Journal Article] Surface-Termination-Dependent Electron Tunneling in Ferroelectric Junctions (2015)
  • Author(s): Hiroyuki Yamada, Atsushi Tsurumaki-Fukuchi, Masaki Kobayashi, Takuro Nagai, Yoshikiyo Toyosaki, Hiroshi Kumigashira, and Akihito Sawa
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• [Journal Article] Effects of Cr substitution on the magnetic and transport properties and electronic states of SrRuO3 epitaxial thin films (2015)
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• [Journal Article] Spin-glass behaviors in carrier polarity controlled Fe3− x Ti x O4 semiconductor thin films (2015)
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• [Journal Article] Electronic structure of Ti1−xFexO2−δthin films with oxygen vacancies probed by soft X-ray spectroscopy (2015)
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• [Journal Article] Metal–Insulator Transition ofc-Axis-Controlled V2O3Thin Film (2015)
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• [Journal Article] Electronic structure and oxygen ion conductivity of as-deposited Ce0.90Sm0.10O2−δthin film prepared by RF magnetron sputtering (2015)
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• [Journal Article] Electronic Structure of b-Axis Oriented VO2 Thin Film with Mixed-Valence States Probed by Soft-X-ray Spectroscopy (2015)
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• [Journal Article] Hole-ion Mixed Conduction of Orientation-Controlled BaPrO3−δThin Film with Mixed Valence States (2015)
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• [Journal Article] Determination of band diagram for a p-n junction between Mott-insulator LaMnO3 and Band-insulator Nb:SrTiO3 (2015)
  • Author(s): M. Kitamura, M. Kobayashi, E. Sakai, R. Takahashi, M. Lippmaa, K. Horiba, H. Fujioka, and H. Kumigashira
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• [Journal Article] Enhanced Electrical Transparency by Ultra-Thin LaAlO3 Insertion at Oxide Metal/Semiconductor Heterointerfaces (2015)
  • Author(s): Takeaki Yajima, Makoto Minohara, Christopher Bell, Hiroshi Kumigashira, Masaharu Oshima, Harold Y. Hwang, and Yasuyuki Hikita
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• [Journal Article] Direct growth of metallic TiH2thin films by pulsed laser deposition (2015)
  • Author(s): K. Yoshimatsu, T. Suzuki, N. Tsuchimine, K. Horiba, H. Kumigashira, T. Oshima, and A. Ohtomo
  • Journal Title: Appl. Phys. Express Volume: 8 Issue: 3 Pages: 035801-035801
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• [Journal Article] Synthesis and magnetic properties of double-perovskite oxide La2MnFeO6 thin films (2015)
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• [Journal Article] Bandwidth-controlled metal-insulator transition in epitaxial PrNiO3 ultrathin films induced by dimensional crossover (2014)
  • Author(s): E. Sakai, K. Yoshimatsu, M. Tamamitsu, K. Horiba, A. Fujimori, M. Oshima, and H. Kumigashira
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• [Journal Article] Thickness-dependent ferromagnetic metal-to-paramagnetic insulator transition in La0.6Sr0.4MnO3 thin films studied by x-ray magnetic circular dichroism (2014)
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  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Orbital correlations and dimensional crossover in epitaxial Pr0.5Ca0.5MnO3/La0.5Sr0.5MnO3 superlattices (2014)
  • Author(s): H. Wadati, J. Okamoto, M. Garganourakis, V. Scagnoli, U. Staub, E. Sakai, H. Kumigashira, T. Sugiyama, E. Ikenaga, M. Nakamura, M. Kawasaki, and Y Tokura
  • Journal Title: New J. Phys. Volume: 16 Pages: 073044-073044
  • DOI: 10.1088/1367-2630/16/7/073044
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Photoemission and DMFT study of electronic correlations in SrMoO3: Effects of Hund's rule coupling and possible plasmonic sideband (2014)
  • Author(s): H. Wadati, J. Mravlje, K. Yoshimatsu, H. Kumigashira, M. Oshima, T. Sugiyama, E. Ikenaga, A. Fujimori, A. Georges, A. Radetinac, K. S. Takahashi, M. Kawasaki, and Y. Tokura
  • Journal Title: Phys. Rev. Volume: 90
  • DOI: 10.1103/physrevb.90.205131
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Metallic conductivity in infinite-layer strontium iron oxide thin films reduced by calcium hydride (2014)
  • Author(s): T. Katayama, A. Chikamatsu, Y. Hirose, H. Kumigashira, T. Fukumura, and T. Hasegawa
  • Journal Title: Journal of Physics D: Applied Physics Volume: 47
  • DOI: 10.1088/0022-3727/47/13/135304
  • Peer Reviewed
• [Journal Article] Electronic Structure and Photoelectrochemical Properties of an Ir- Doped SrTiO3 Photocatalyst (2014)
  • Author(s): Seiji Kawasaki, Ryota Takahashi, Kazuto Akagi, Jun Yoshinobu, Fumio Komori, Koji Horiba, Hiroshi Kumigashira, Katsuya Iwashina, Akihiko Kudo, Mikk Lippmaa
  • Journal Title: The Journal of Physical Chemistry C Volume: 118 Pages: 20222-20222
  • DOI: 10.1021/jp5062573
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Growth of TiO2−δthin film by RF magnetron sputtering using oxygen radicals and Ti metal (2014)
  • Author(s): Y. Shimazu, T. Okumura, E. Sakai, H. Kumigasira, M. Okawa, T. Saitoh, and T. Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume: 53 Issue: 6S Pages: 06JG01-06JG01
  • DOI: 10.7567/jjap.53.06jg01
  • Peer Reviewed
• [Journal Article] Electrical conductivity of Sc-doped TiO2thin film prepared by RF magnetron sputtering (2014)
  • Author(s): T. Inoue, T. Okumura, Y. Shimazu, E. Sakai, H. Kumigashira and T. Higuchi
  • Journal Title: Japanese Journal of Applied Physics Volume: 53 Issue: 6S Pages: 06JG03-06JG03
  • DOI: 10.7567/jjap.53.06jg03
  • NAID: 210000144111
  • Peer Reviewed
• [Journal Article] Persistent insulator-to-metal transition of a VO2 thin film induced by soft X-ray irradiation (2014)
  • Author(s): Yuji Muraoka, Hiroki Nagao, Shinsuke Katayama, Takanori Wakita, Masaaki Hirai, Takayoshi Yokoya, Hiroshi Kumigashira, Masaharu Oshima
  • Journal Title: Japanese Journal of Applied Physics Volume: 53 Issue: 5S1 Pages: 05FB09-05FB09
  • DOI: 10.7567/jjap.53.05fb09
  • Peer Reviewed
• [Journal Article] Determination of the surface and interface phase shifts in metallic quantum well structures of perovskite oxides (2013)
  • Author(s): K. Yoshimatsu, E. Sakai, M. Kobayashi, K. Horiba, T. Yoshida, A. Fujimori, M. Oshima, and H. Kumigashira
  • Journal Title: Physical Review B Volume: 88
  • DOI: 10.1103/physrevb.88.115308
  • Peer Reviewed
• [Journal Article] Gradual localization of Ni 3d states in LaNiO3 ultrathin films induced by dimensional crossover (2013)
  • Author(s): E. Sakai, T. Masatomo, K. Yoshimatsu. S. Okamoto, K. Horiba, M. Oshima, and H. Kumigashira
  • Journal Title: Phys. Rev. B Volume: 87
  • DOI: 10.1103/physrevb.87.075132
  • Peer Reviewed
• [Journal Article] Chemical-state-resolved depth profiles of Al/Pr0.7Ca0.3MnO3 stacked structures for application in resistive switching devices (2013)
  • Author(s): S. Toyoda, T. Namiki, E. Sakai, K. Nakata, M. Oshima, and H. Kumigashira
  • Journal Title: J. Appl. Phys. Volume: 114
  • DOI: 10.1063/1.4858381
  • Peer Reviewed
• [Journal Article] Epitaxial Synthesis and Electronic Properties of Double-Perovskite Sr2TiRuO6Films (2013)
  • Author(s): K. Nogami, K. Yoshimatsu, H. Mashiko, E. Sakai, H. Kumigashira, O. Sakata, T. Oshima, and A. Ohtomo
  • Journal Title: Appl. Phys. Express Volume: 6 Issue: 10 Pages: 105502-105502
  • DOI: 10.7567/apex.6.105502
  • NAID: 210000136839
  • Peer Reviewed
• [Journal Article] Spectroscopic studies on the electronic and magnetic states of Co-doped perovskite manganite Pr0.8Ca0.2Mn1－yCoyO3 thin films (2013)
  • Author(s): K. Yoshimatsu, H. Wadati, E. Sakai, T. Harada, Y. Takahashi, T. Harano, G. Shibata, K. Ishigami, T. Kadono, T. Koide, T. Sugiyama, E. Ikenaga, H. Kumigashira, M. Lippmaa, M. Oshima, and A. Fujimori
  • Journal Title: Physical Review B Volume: 88
  • DOI: 10.1103/physrevb.88.174423
  • Peer Reviewed
• [Journal Article] Electronic and transport properties of Eu-substituted SrFeO2 thin films with infinite-layer structure (2013)
  • Author(s): A. Chikamatsu, T. Matsuyama, T. Katayama, Y. Hirose, H. Kumigashira, M. Oshima, T. Fukumura, and T. Hasegawa
  • Journal Title: J. Cry. Growth Volume: 378 Pages: 165-167
  • DOI: 10.1016/j.jcrysgro.2012.12.067
  • Peer Reviewed
• [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
  • Place of Presentation: 東北大学WPI（宮城県・仙台市）
  • Year and Date: 2016-10-21
  • Int'l Joint Research / Invited
• [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
  • Place of Presentation: 金沢大学角間キャンパス（石川県・金沢市）
  • Year and Date: 2016-09-13
  • Invited
• [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 surface: advanced spectroscopies and beyond
  • Place of Presentation: Yosemite, California, US
  • Year and Date: 2016-07-12
  • Int'l Joint Research / Invited
• [Presentation] SrVO3(110)薄膜のin situ ARPESにおけるk⊥ broadeningの効果 (2016)
  • 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: 日本物理学会 第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学泉キャンパス（宮城県仙台市）
  • Year and Date: 2016-03-19
• [Presentation] in situ角度分解光電子分光法によるAnatase-TiO2(001)表面の2次元電子液体発現機構の解明 (2016)
  • 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: 日本物理学会 第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学泉キャンパス（宮城県仙台市）
  • Year and Date: 2016-03-19
• [Presentation] 強相関金属酸化物SrVO3量子井戸における金属-絶縁体転移近傍のフェルミ液体破綻 (2016)
  • Author(s): 小林正起，吉松公平，三橋太一，坂井延寿，北村未歩，湯川龍，簔原誠人，藤森淳，堀場弘司，組頭広志
  • Organizer: 日本物理学会 第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学泉キャンパス（宮城県仙台市）
  • Year and Date: 2016-03-19
• [Presentation] ペロブスカイト酸化物LaNiO3/LaMnO3へテロ界面における電荷移動現象 (2016)
  • Author(s): 北村未歩，堀場弘司，小林正起，坂井延寿，簔原誠人，三橋太一，藤森淳，藤岡洋，組頭広志
  • Organizer: 日本物理学会 第71回年次大会（2016年）
  • Place of Presentation: 東北学院大学泉キャンパス（宮城県仙台市）
  • Year and Date: 2016-03-19
• [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 (2016)
  • 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63回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学 大岡山キャンパス（東京都目黒区）
  • Year and Date: 2016-03-19
• [Presentation] Novel two-dimensional electron liquid states in quantum well structures of strongly correlated oxides (2016)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: BIT’s 2nd Annual World Congress of Smart Materials 2016
  • Place of Presentation: Singapore
  • Year and Date: 2016-03-04
  • Invited
• [Presentation] ペロブスカイト酸化物LaMnO3/LaNiO3へテロ界面における電荷移動 (2016)
  • Author(s): 北村未歩、堀場弘司、小林正起、坂井延寿、簔原誠人、三橋太一、藤森淳、藤岡洋、組頭広志
  • Organizer: 第29回日本放射光学会・放射光科学合同シンポジウム
  • Place of Presentation: 東京大学柏の葉キャンパス駅前サテライト（千葉県柏市）
  • Year and Date: 2016-01-09
• [Presentation] 強相関酸化物SrVO3量子井戸状態の金属絶縁体転移近傍における振る舞い (2016)
  • Author(s): 小林正起、吉松公平、三橋太一、坂井延寿、北村未歩、湯川龍、簔原 誠人、藤森淳、堀場弘司、組頭広志
  • Organizer: 第29回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 東京大学柏の葉キャンパス駅前サテライト（千葉県柏市）
  • Year and Date: 2016-01-09
• [Presentation] ペロブスカイト型遷移金属酸化物SrVO3(110)薄膜の偏光依存ARPES (2016)
  • Author(s): 三橋太一、簔原誠人、北村未歩、坂井延寿、堀場弘司、吉松公平、藤森淳、小林正起、組頭広志
  • Organizer: 第29回日本放射光学会・放射光科学合同シンポジウム
  • Place of Presentation: 東京大学柏の葉キャンパス駅前サテライト（千葉県柏市）
  • Year and Date: 2016-01-09
• [Presentation] 終端面制御したLaFeO3/Nb:SrTiO3ヘテロ接合界面の電子状態 (2016)
  • Author(s): 簔原誠人、北村未歩、三橋太一、小林正起、堀場弘司、組頭広志
  • Organizer: 第29回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 東京大学柏の葉キャンパス駅前サテライト（千葉県柏市）
  • Year and Date: 2016-01-09
• [Presentation] Novel two-dimensional electron liquid states in quantum well structures of strongly correlated oxides (2015)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: CEMS Topical Meeting on Oxide Interfaces 2015
  • Place of Presentation: Okochi Hall, RIKEN, Wako Saitama, Japan
  • Year and Date: 2015-11-05
  • Invited
• [Presentation] Synchrotron-Radiation Analysis of 2D Electrides (2015)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: STAC-9&TOEO-8：The 9th International Conference on the Science and Technology for Advanced Ceramics (STAC-9)
  • Place of Presentation: Epocal Tsukuba, Tsukuba, Ibaraki, Japan
  • Year and Date: 2015-10-19
  • Invited
• [Presentation] Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Correlated Oxide SrVO3 (2015)
  • Author(s): M. Kobayashi, K. Yoshimatsu , E. Sakai , M. Kitamura ,K. Horiba, A. Fujimori, and H. Kumigashira
  • Organizer: The 9th International Conference on the Science and Technology for Advanced Ceramics
  • Place of Presentation: Epocal Tsukuba, Tsukuba, Ibaraki, Japan
  • Year and Date: 2015-10-19
  • Int'l Joint Research
• [Presentation] Charge transfer at the heterointerface between perovskite oxides LaNiO3 and LaMnO3 (2015)
  • Author(s): M. Kitamura, K. Horiba, M. Kobayashi, E. Sakai, M. Minohara, T. Mitsuhashi, A. Fujimori, H. Fujioka, and H. Kumigashira
  • Organizer: 22nd International Workshop on Oxide Electronics
  • Place of Presentation: College de France, Paris, France
  • Year and Date: 2015-10-07
  • Int'l Joint Research
• [Presentation] Kink and quasiparticle excitations in La0.6Sr0.4MnO3 thin films studied by in situ angle-resolved photoemission spectroscopy (2015)
  • Author(s): K. Horiba, M. Kitamura, K. Yoshimatsu, M. Minohara, E. Sakai, M. Kobayashi, A. Fujimori, and H. Kumigashira
  • Organizer: International Conference on Electron Spectroscopy and Structure
  • Place of Presentation: Stony Brook, New York
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Correlated Oxide SrVO3 (2015)
  • Author(s): M. Kobayashi, K. Yoshimatsu , E. Sakai , M. Kitamura ,K. Horiba, A. Fujimori , H. Kumigashira
  • Organizer: International Conference on Electron Spectroscopy and Structure
  • Place of Presentation: Stony Brook, New York, US
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Polarization dependent angle-resolved photoemission study on the (110) surface of SrVO3 films (2015)
  • Author(s): T.Mitsuhashi, M, Minohara, M. Kitamura, R. Yukawa, E. Sakai, K . Horiba, K. Yoshimatsu, A. Fujimori, M . Kobayashi, and H . Kumigashira
  • Organizer: International Conference on Electron Spectroscopy and Structure
  • Place of Presentation: Stony Brook University, Brookhaven, New York, US
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] 終端面制御したLaFeO3/Nb:SrTiO3ヘテロ接合界面の電子状態 (2015)
  • Author(s): 簑原 誠人、北村 未歩、三橋 太一、小林 正起、堀場 弘司、組頭 広志
  • Organizer: 第76回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場（愛知県名古屋市）
  • Year and Date: 2015-09-13
• [Presentation] Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Correlated Oxide SrVO3 (2015)
  • Author(s): M. Kobayashi, K. Yoshimatsu , E. Sakai , M. Kitamura ,K. Horiba, A. Fujimori , H. Kumigashira
  • Organizer: French Physical Society
  • Place of Presentation: Strasbourg, France
  • Year and Date: 2015-08-24
  • Int'l Joint Research
• [Presentation] Observation and control of novel quantum phenomena in artificial structures of strongly correlated oxides; “Materials by design” using synchrotron-radiation analysis (2015)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: SRI2015：12th International Conference on Synchrotron Radiation Instrumentation
  • Place of Presentation: Marriott Marquis, New York, US
  • Year and Date: 2015-07-06
  • Invited
• [Presentation] Materials by design” using synchrotron analysis: Application to oxide quantum well structures (2015)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: ICMAT2015 & IUMRS-ICA2015：8th International Conference on Materials for Advanced Technologies of The Materials Research Society of Singapore & 16th IUMRS ; International Conference in Asia
  • Place of Presentation: Suntec Singapore, Singapore
  • Year and Date: 2015-06-28
  • Invited
• [Presentation] 元素戦略ビームラインBL-2Aにおける”Materials by design” (2015)
  • Author(s): 組頭広志
  • Organizer: 第28回日本放射光学会年会放射光科学合同シンポジウム
  • Place of Presentation: 立命館大学びわこ・くさつキャンパス
  • Year and Date: 2015-02-10 – 2015-02-12
  • Invited
• [Presentation] Unusual Behavior of the Subbands in Strongly-Correlated Oxide Quantum Well Structures (2014)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: The 18th SANKEN International Symposium & The 13th SANKEN Nanotechnology Symposium
  • Place of Presentation: The Congres Convention Center, Osaka, Japan.
  • Year and Date: 2014-12-10 – 2014-12-11
  • Invited
• [Presentation] Unusual Behavior of the Subbands in Strongly-Correlated Oxide Quantum Well Structures (2014)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: CCMR2014 Collaborative Conference on Materials Research
  • Place of Presentation: Songdo Convensia, Incheon/Seoul, South Korea
  • Year and Date: 2014-06-23 – 2014-06-27
  • Invited
• [Presentation] Behavior of metallic quantum well states of SrVO3 ultrathin films near the thickness-dependent metal-insulator transition (2013)
  • Author(s): K. Yoshimatsu, E. Sakai, M. Kobayashi, K. Horiba, T. Yoshida, A. Fujimori, M. Oshima, and H. Kumigashira
  • Organizer: Light and Particle Beams in Materials Science 2013
  • Place of Presentation: Tsukuba, Japan
• [Presentation] Determination of the surface and interface phase shifts of standing waves in metallic quantum well structures composed of SrVO3 and SrTiO3 (2013)
  • Author(s): K. Yoshimatsu, E. Sakai, M. Kobayashi, K. Horiba, T. Yoshida, A. Fujimori, M. Oshima, and H. Kumigashira
  • Organizer: Workshop on Oxide Electronics 20
  • Place of Presentation: National University of Singapore, Singapore
• [Presentation] Unusual behavior of the subbands in strongly-correlated oxide quantum well structures
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: The 12th Asia Pacific Physics Conference (APPC12)
  • Place of Presentation: Makuhari Messe, Chiba, Japan
  • Invited
• [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] 組頭研究室HP
  • URL: http://oxides.kek.jp/
• [Remarks] 物構研トピックス 3,2,1! で重たくなる電子
  • URL: http://www2.kek.jp/imss/news/2015/topics/0928SrVO3/index.html
• [Remarks] 半導体接合面バンドオフセットの任意制御に成功
  • URL: http://www2.kek.jp/imss/news/2015/topics/0410hetero/
• [Remarks] 研究室の研究内容紹介
  • URL: http://oxides.kek.jp/