論文

• Masayuki Okuya, Jun Sato, Takeshi Endo, Ryo Iwaki, Shuichiro Takemura, Ryosuke Muramoto, Viola Nagygyorgy, Janos Madarasz, Shoichiro Nakao, Naoomi Yamada, Enju Sakai, Taro Hitosugi, Tetsuya Hasegawa. TiO2/TNO homojunction introduced in a dye-sensitized solar cell with a novel TNO transparent conductive oxide film, Journal of the American Ceramic Society, Vol. 101, p. 5071, May 2018.
• Masaki Kobayashi, K. Yoshimatsu, Taichi Mitsuhashi, Miho Kitamura, Enju Sakai, Ryu Yukawa, Makoto Minohara, Atsushi Fujimori, Koji Horiba, Hiroshi Kumigashira. Emergence of Quantum Critical Behavior in Metallic Quantum-Well States of Strongly Correlated Oxides, Scientific Reports, Vol. 7, pp. 16621, Nov. 2017.  公式リンク  
  
• Koji Horiba, Miho Kitamura, Kohei Yoshimatsu, Makoto Minohara, Enju Sakai, Masaki Kobayashi, Atsushi Fujimori, Hiroshi Kumigashira. Isotropic Kink and Quasiparticle Excitations in the Three-Dimensional Perovskite Manganite La _0.6 Sr _0.4 MnO₃, PHYSICAL REVIEW LETTERS, American Physical Society, Vol. 116, 076401, Feb. 2016.  公式リンク  
  
• Masaki Kobayashi, Kohei Yoshimatsu, Enju Sakai, Miho Kitamura, Koji Horiba, Atsushi Fujimori, Hiroshi Kumigashira. Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Strongly Correlated Oxide SrVO₃, PHYSICAL REVIEW LETTERS, American Physical Society, Vol. 115, 7, 076801, Aug. 2015.
• G. Shibata, K. Yoshimatsu, Enju Sakai, V. R. Singh, V. K. Verma, Keisuke Ishigami, Takayuki Harano, Toshiharu Kadono, Yukiharu Takeda, Tetsuo Okane, Yuji Saitoh, Hiroshi Yamagami, Akihito Sawa, Hiroshi Kumigashira, Masaharu Oshima, Tsuneharu Koide, Atsushi Fujimori. Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in La_0.6Sr_0.4MnO₃ thin films studied by x-ray magnetic circular dichroism, Physical Review B, 89, 235123, June 2014.
• Enju Sakai, Kohei Yoshimatsu, Masatomo Tamamitsu, Koji Horiba, Atsushi Fujimori, Masaharu Oshima, Hiroshi Kumigashira. Bandwidth-controlled metal-insulator transition in epitaxial PrNiO3 ultrathin films induced by dimensional crossover, Applied Physics Letters, 104, 171609, May 2014.
• 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, A. Fujimori. Spectroscopic studies on the electronic and magnetic states of Co-doped perovskite manganite Pr_0.8Ca_0.2Mn_1−yCo_yO₃ thin films, Physical review. B, Condensed matter and materials physics, Vol. 88, Page 174423, Nov. 2013.  公式リンク  
  
• K. Yoshimatsu, Enju Sakai, Masaki Kobayashi, Koji Horiba, Teppei Yoshida, Atsushi Fujimori, Masaharu Oshima, H. Kumigashira. Determination of the surface and interface phase shifts in metallic quantum well structures of perovskite oxides, Physical Review B, American Physical Society, Vol. 88, 155308, Sept. 2013.  公式リンク  
  
• K. Nogami, K. Yoshimatsu, H. Mashiko, E. Sakai, H. Kumigashira, O. Sakata, T. Oshima, A. Ohtomo. Epitaxial synthesis and electronic properties of double-perovskite Sr₂TiRuO₆ films, Applied Physics Express, The Japan Society of Applied Physics, Volume 6, Number 10, 105502-1-4, Sept. 2013.  公式リンク  
  
• E. Sakai, T. Masatomo, K. Yoshimatsu, Satoshi Okamoto, Koji Horiba, M. Oshima, H. Kumigashira. Gradual localization of Ni 3d states in LaNiO3 ultrathin films induced by dimensional crossover, Vol. 87, page 075132, Feb. 2013.
• E. Sakai, K. Yoshimatsu, Keisuke Shibuya, H. Kumigashira, E. Ikenaga, M. Kawasaki, Y. Tokura, M. Oshima. Competition between instabilities of Peierls transition and Mott transition in W-doped VO2 thin films, Nov. 2011.

国際会議発表 (査読有り)

• K. Yoshimatsu, E. Sakai, P. -H. Xiang, S. Asanuma, H. Yamada, A. Sawa, E. Ikenaga, K. Horiba, Masaharu Oshima, H. Kumigashira. Electronic structures of hole-doped perovskite nickelate Sm1-xCaxNiO3 thin films studied by hard x-ray photoemission spectroscopy, The 19th International Workshop on Oxides Electronics, B-14, Oct. 2012.
• K. Yoshimatsu, E. Sakai, H. Kumigashira, A. Fujimori, M. Oshima. Fermi surface of SrRuO3 thin films studied by in situ soft x-ray angle-resolved photoemission spectroscopy, The 4th Indo-Japan Seminar, P19, Feb. 2011.
• K. Yoshimatsu, E. Sakai, H. Kumigashira, A. Fujimori, M. Oshima. Fermi surface of SrRuO3 thin films studied by soft x-ray angle-resolved photoemission spectroscopy, The 17th International Workshop on Oxides Electronics, B-14, Sept. 2010.

国内会議発表 (査読有り)

• 吉松 公平, 坂井 延寿, Xiang P. -H., 浅沼周太郎, 山田浩之, 澤彰仁, 池永 英司, 堀場弘司, 尾嶋 正治, 組頭 広志. 硬X線光電子分光によるSm1-xCaxNiO3薄膜の電子状態, 第26回日本放射光学会年会放射光科学合同シンポジウム, 12P040, Jan. 2013.
• 吉松 公平, 坂井 延寿, Xiang P. -H., 浅沼周太郎, 山田浩之, 澤彰仁, 池永 英司, 堀場弘司, 尾嶋 正治, 組頭 広志. Sm1-xCaxNiO3薄膜の硬X線光電子分光, 日本物理学会２０１２年秋季大会, 19pFE-7, Sept. 2012.
• 吉松 公平, 坂井延寿, 組頭 広志, 藤森 淳, 尾嶋 正治. SrRuO3薄膜のin situ角度分解光電子分光, 第24回日本放射光学会年会放射光科学合同シンポジウム, 10p052, Jan. 2011.
• 吉松 公平, 坂井延寿, 組頭 広志, 藤森 淳, 尾嶋 正治. SrRuO3薄膜の軟X線角度分解光電子分光, 第66回日本物理学会年次大会, 24pRE-2, Sept. 2010.

国際会議発表 (査読なし・不明)

• K. Yoshimatsu, K. Nogami, K. Watarai, H. Mashiko, E. Sakai, H. Kumigashira, O. Sakata, T. Oshima, A. Ohtomo. Synthesis and spectroscopic study on double-perovskite oxide thin films, 2014 Energy Materials Nanotechnology Open Access week, Sept. 2014.  公式リンク  
  
• H. Mashiko, T. Oshima, K. Yoshimatsu, E. Sakai, H. Kumigashira, J. T. Song, T. Iwasaki, M. Hatano, A. Ohtomo. A systematic study of (Cr_xFe_1-x)₂O₃ solid-solution photoelectrodes for visible-light-driven water splitting, The Second International Education Forum on Environment and Energy Science, Dec. 2013.  公式リンク  
  
• H. Mashiko, T. Oshima, K. Yoshimatsu, E. Sakai, H. Kumigashira, A. Ohtomo. Modulation of electronic structure in α-(Cr_XFe_1-X)₂O₃ solid solution for improving visible-light photocatalytic activity, The Seventh International Conference on the Science and Technology for Advanced Ceramics (STAC-7), June 2013.  公式リンク  
  
• K. Nogami, H. Mashiko, K. Yoshimatsu, E. Sakai, H. Kumigashira, O. Sakata, T. Oshima, A. Ohtomo. Epitaxial synthesis and electronic properties of double-perovskite Sr₂TiRuO₆, The Seventh International Conference on the Science and Technology for Advanced Ceramics (STAC-7), June 2013.  公式リンク  
  
• H. Mashiko, T. Oshima, E. Sakai, H. Kumigashira, A. Ohtomo. Band-gap narrowing in α-Cr₂O₃-Fe₂O₃ solid solution films, 2013 Materials Research Society Spring Meeting, Apr. 2013.  公式リンク  
  

国内会議発表 (査読なし・不明)

• 大島 孝仁, 増子 尚徳, 野上 顕悟, 吉松 公平, 坂井 延寿, 組頭 広志, 坂田 修身, 大友 明. 遷移金属酸化物の電子構造制御による光エネルギー変換材料への展開, ISSPセミナー（Polar oxides for energy conversion）, June 2013.  公式リンク  
  
• 野上 顕悟, 増子 尚徳, 坂井 延寿, 組頭 広志, 大島 孝仁, 大友 明. ダブルペロブスカイト型Sr₂TiRuO₆の薄膜成長と物性, 第60回応用物理学会春季学術講演会, Mar. 2013.  公式リンク  
  
• 増子 尚徳, 坂井 延寿, 組頭 広志, 大島 孝仁, 大友 明. 遷移金属酸化物混晶におけるバンドギャップ狭帯化の起源, 第73回秋季応用物理学会学術講演会, Sept. 2012.  公式リンク  
  

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