Publications 

2025年

80. D. Shiga, S. Inoue, T. Kanda, N. Hasegawa, M. Kitamura, K. Horiba, K. Yoshimatsu, A. F. Santander-Syro, and H. Kumigashira, “Interface-induced collective phase transition in VO2-based bilayers studied by layer selective spectroscopy” Sci. Rep. 15, 36743 (2025). 

DOI: 10.1038/s41598-025-20752-w

79. A. Sato, T. Soma, H. Kumigashira, K. Yoshimatsu, and A. Ohtomo, “Strongly Correlated van der Waals Oxide: 2H-NbO2” ACS Nano 19, 26592 (2025).

DOI: 10.1021/acsnano.5c05513
 

2024年

78. R. Hayasaka, T. Kanda, Y. Masutake, D. K. Nguyen, N. Hasegawa, S. Inoue, A. Wada, M. Kitamura, D. Shiga, K. Yoshimatsu, and H. Kumigashira, “Common anion rule in oxide heterointerfaces: Experimental verification by in situ photoemission spectroscopy” APL Mater. 12, 071111 (2024).   DOI: 10.1063/5.0223269​

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77. K. Yoshimatsu, H. Nakao, and H. Kumigashira, “Temperature-induced phase transition of λ-Ti3O5 films” Phys. Rev. Mater. 8, 035002 (2024). Editor’s suggestion  DOI: 10.1103/PhysRevMaterials.8.03500​

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2023年

76. D. Shiga, X. Cheng, T. T. Kim, T. Kanda, N. Hasegawa, M. Kitamura, K. Yoshimatsu, and H. Kumigashira, "Electronic phase diagram of Cr-doped VO2 epitaxial films studied by in situ photoemission spectroscopy" Phys. Rev. B 108, 045112 (2023).

DOI: 10.1103/PhysRevB.108.045112

75. T. Kanda, D. Shiga, A. Wada, R. Hayasaka, Y. Masutake, N. Hasegawa, M. Kitamura, K. Yoshimatsu, and H. Kumigashira, "Quantization condition of strongly correlated electrons in oxide nanostructures" Commun. Mater. 4, 27 (2023). 

DOI: 10.1038/s43246-023-00354-7
 

74. 吉松　公平、”パルスレーザ堆積法によるλ相Ti3O5薄膜の合成 –薄膜による準安定相図の安定化” レーザ加工学会誌 Vol. 30, No. 1, pp. 42–45 (2023).

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2022年

73. K. Yoshimatsu, S. Miyazaki, N. Hasegawa, and H. Kumigashira, “Evidence of lattice deformation induced metal-insulator transition in Ti2O3” Phys. Rev. B 106, L081110 (2022).

DOI: 10.1103/PhysRevB.106.L081110

72. N. Hasegawa, K. Yoshimatsu, D. Shiga, T. Kanda, S. Miyazaki, M. Kitamura, and K. Horiba, and H. Kumigashira, “Direct observation of band structure for Ti2O3 thin films by soft X-ray angle resolved photoemission spectroscopy” Phys. Rev. B 105, 235137 (2022). 

DOI: 10.1103/PhysRevB.105.235137
 

71. M. Kitamura, S. Souma, A. Honma, D. Wakabayashi, H. Tanaka, A. Toyoshima, K. Amemiya, T. Kawakami, K. Sugawara, K. Nakayama, K. Yoshimatsu, H. Kumigashira, T. Sato, and K. Horiba, "Development of a versatile micro-focused angle-resolved photoemission spectroscopy system with Kirkpatrick-Baez mirror optics" Rev. Sci. Instr. 93, 033906 (2022). 
DOI: 10.1063/5.0074393

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70. T. Soma, K. Yoshimatsu, K. Horiba, H. Kumigashira, and A. Ohtomo, “Two-dimensional superconductivity in single-band correlated 2H-type NbO2 layers” Phys. Rev. B 105, 104504 (2022).

DOI: 10.1103/PhysRevB.105.104504

69. K. Yoshimatsu and H. Kumigashira, “Direct synthesis of metastable λ-phase Ti3O5 film on LaAlO3 (110) substrates under high temperatures” Cryst. Growth Des. 22, 703 (2022). 

DOI: 10.1021/acs.cgd.1c01214

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68. A. Ohtomo, T. Soma, and K. Yoshimatsu, “Electrochemical modulation of electronic states in strongly correlated transition-metal oxides” JSAP Review 220202 (2022).

DOI: 10.11470/jsaprev.220202

67. 吉松　公平、”新しい準安定酸化チタンλ相Ti3O5 〜多彩な相転移と薄膜合成〜” 光技術コンタクト Vol. 60, No. 5 pp12–20 (2022).

66. 吉松　公平、”新しい準安定酸化チタン　多彩な機能と合成法” 化学と工業 (4月号) Vol. 75-4, pp264-265 (2022).

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2021年

65. T. Yajima, T. Soma, K. Yoshimatsu, and A. Ohtomo, “Heavy-fermion metallic state and Mott transition induced by Li-ion intercalation in LiV2O4 epitaxial films” Phys. Rev. B 104, 245104 (2021).

DOI: 10.1103/PhysRevB.104.245104

64. R. Yukawa, M. Kobayashi, T. Kanda, D. Shiga, K. Yoshimatsu, S. Ishibashi, M. Minohara, M. Kitamura, K. Horiba, A. F. Santander-Syro, and H. Kumigashira, “Resonant tunneling driven metal-insulator transition in double quantum-well structures of strongly correlated oxide” Nature Commun. 12, 7070 (2021).

DOI: 10.1038/s41467-021-27327-z

63. T. Kanda, D. Shiga, R. Yukawa, N. Hasegawa, D. K. Nguyen, X. Cheng, R. Tokunaga, M. Kitamura, K. Horiba, K. Yoshimatsu, and H. Kumigashira, “Electronic structure of SrTi1–xVxO3 films studied by in situ photoemission spectroscopy: Screening for a transparent electrode material” Phys. Rev. B 104, 115121 (2021).

DOI: 10.1103/PhysRevB.104.115121

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62. R. Wakabayashi, K. Yoshimatsu, M. Hattori, J. –S. Lee, O. Sakata, and A. Ohtomo*, “Epitaxial stabilization of complete solid-solution β-(AlxGa1–x)2O3 (100) films by pulsed-laser deposition” Cryst. Growth Des. 21, 2844 (2021). 

DOI: 10.1021/acs.cgd.1c00030

61. T. Soma, T. Kobayashi, K. Yoshimatsu, and A. Ohtomo, “Superconducting dome underlying bipolaronic insulating state in charge-doped Ti4O7 epitaxial films” J. Phys. Soc. Jpn. 90, 023705 (2021). 

DOI: 10.7566/JPSJ.90.023705

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2020年

60. K. Yoshimatsu, N. Hasegawa, Y. Nambu, Y. Ishii, Y. Wakabayashi, and H. Kumigashira, “Metallic ground states of undoped Ti2O3 films induced by elongated c-axis lattice constant” Sci. Rep. 10, 22109 (2020).

DOI: 10.1038/s41598-020-79182-5

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59. D. Shiga, B. E. Yang, N. Hasegawa, T. Kanda, R. Tokunaga, K. Yoshimatsu, R. Yukawa, M. Kitamura, K. Horiba, and H. Kumigashira, “Thickness dependence of electronic and crystal structures in VO2 ultrathin films: suppression of the collaborative Mott-Peierls transition” Phys. Rev. B 102, 115114 (2020).  Editors suggestions

DOI: 10.1103/PhysRevB.102.115114

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58. T. Soma, K. Yoshimatsu, and A. Ohtomo, “P-type transparent superconductivity in two-dimensional Li1-xNbO2 with strongly correlated electrons at isolated d band” Science Advances 6, eabb8570 (2020).

DOI: 10.1126/sciadv.abb8570

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57. J. Mizushiro, K. Yoshimatsu, N. Ohashi, M. Tanaka, O. Sakata, and A. Ohtomo, “Optical and structural investigations on titanium oxynitride films for visible-UV photocatalytic applications” J. Appl. Phys. 127, 135301 (2020). 

DOI: 10.1063/1.5143609

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56. G. Shibata, K. Yoshimatsu, E. Sakai, K. Ishigami, S. Sakamoto, Y. Nonaka, F. –H. Chang, H. –J. Lin, D. –J. Huang, C. –T. Chen, H. Kumigashira, and A. Fujimori, “Temperature evolution of magnetic phases near the thickness-dependent metal-insulator transition in La1−xSrxMnO3 thin films observed by XMCD” J. Phys. Conf. Proc. 30, 011072 (2020). 

DOI: 10.7566/JPSCP.30.011072

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2019年

55. K. Yoshimatsu, J. Ishimaru, K. Watarai, K. Yamamoto, Y. Hirata, H. Wadati, Y. Takeda, K. Horiba, H. Kumigashira, O. Sakata, and A. Ohtomo, “Magnetic and electronic properties of B-site-ordered double-perovskite oxide La2CrMnO6 thin films” Phys. Rev. B. 99, 235129 (2019).  DOI:10.1103/PhysRevB.99.235129

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54. S. Sekiguchi, T. Shiraishi, K. Miura, C. Kawashima, K. Yoshimatsu, A. Ohtomo, H. Kamioka, and H. Takahashi, “High-pressure study for superconductivity in Ti4O7 film” J. Phys. Soc. Jpn. 88, 035001 (2019).   DOI: 10.7566/JPSJ.88.035001

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2018年

53. K. Yoshimatsu, H. Kurokawa, K. Horiba, H. Kumigashira, and A. Ohtomo, "Large anisotropy in conductivity of Ti2O3 films" APL Mater. 6, 101101 (2018).

DOI: 10.1063/1.5050823

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52. T. Soma, K. Yoshimatsu, K. Horiba, H. Kumigashira, and A. Ohtomo, "Electronic properties across metal-insulator transition in β-pyrochlore CsW2O6 epitaxial films" Phys. Rev. Mater. 2, 115003 (2018).

DOI: 10.1103/PhysRevMaterials.2.115003

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51. G. Shibata, K. Yoshimatsu, K. Ishigami, T. Harano, Y. Takahashi, S. Sakamoto,  Y. Nonaka, T. Kadono, 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, "Anisotropic charge distribution induced by spin polarization in La0.6Sr0.4MnO3 thin films by x-ray magnetic linear dichroism" J. Phys. Soc. Jpn. 87, 114713 (2018).

DOI: 10.7566/JPSJ.87.114713

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50. R. Wakabayashi, M. Hattori, K. Yoshimatsu, K. Horiba, H. Kumigashira, and A. Ohtomo, “Band alignment at β-(AlxGa1-x)2O3/β-Ga2O3 (100) interface fabricated by pulsed-laser deposition” Appl. Phys. Lett. 112, 232103 (2018). 

DOI: 10.1063/1.5027005

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49. G. Shibata, M. Kitamura, M. Minohara, K. Yoshimatsu, T. Kadono, K. Ishigami, T. Harano, Y. Takahashi, S. Nakamoto, Y. Nonaka, K. Ikeda, Z. Chi, M. Furus, S. Luchino, M. Okano, J. Fujihira, A. Uchida, K. Watanabe, H. Fujihira, S. Fujihira, A. Tanaka, H. Kumigashira, T. Koide, and A. Fujimori, "Anisotropic spin-density distribution and magnetic anisotropy of strained La1-xSrxMnO3 thin films: Angle-dependent x-ray magnetic circular dichroism" npj Quantum Materials 3, 3 (2018).

DOI: 10.1038/s41535-018-0077-4

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2017年

48. K. Yoshimatsu, O. Sakata, and A. Ohtomo, "Superconductivity in Ti4O7 and γ-Ti3O5 films" Sci. Rep. 7, 12544 (2017).

DOI: 10.1038/s41598-017-12815-4

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47. K. Yoshimatsu, H. Mashiko, N. Umezawa, K. Horiba, H. Kumigashira, and A. Ohtomo “Electronic Structures and Photoanodic Properties of Ilmenite-type MTiO3 Epitaxial Films (M = Mn, Fe, Co, Ni)” J. Phys. Chem. C 121, 18717 (2017).

DOI: acs.jpcc.7b06076​

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46. N. Nishiyama, H. Mashiko, K. Yoshimatsu, K. Horiba, H. Kumigashira, and A. Ohtomo, "Highly oriented epitaxial CaFe2O4 thin films on TiO2 substrates grown by pulsed-laser deposition" Thin Solid Films 638, 406 (2017).

DOI: 10.1016/j.tsf.2017.08.003

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45. H. Kurokawa, K. Yoshimatsu, O. Sakata, and A. Ohtomo, "Effects of phase fraction on superconductivity of low-valence eutectic titanate films"  J. Appl. Phys. 122, 055302 (2017).  DOI: 10.1063/1.4997443

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44. R. Wakabayashi, K. Yoshimatsu, M. Hattori, and A. Ohtomo, "Epitaxial structure and electronic properties of β-Ga2O3 films grown on MgO (100) substrates by pulsed-laser deposition" Appl. Phys. Lett. 111, 162101 (2017).

DOI: 10.1063/1.4990779

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43. M. Kobayashi, K. Yoshimatsu, T. Mitsuhashi, M. Kitamura, E. Sakai, R. Yukawa, M. Minohara, A. Fujimori, Koji Horiba, and Hiroshi Kumigashira, "Emergence of Quantum Critical Behavior in Metallic Quantum-Well States of Strongly Correlated Oxides" Sci. Rep. 7, 16621 (2017).  DOI: 10.1038/s41598-017-16666-x

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42. M. M. Maitani, T. Yamada, H. Mashiko, K. Yoshimatsu, T. Oshima, A. Ohtomo, and Y. Wada, “Microwave effects on Co-Pi co-catalysis deposited on α-Fe2O3 for application to photocatalytic oxygen evolution” ACS Appl. Mater. Interf.  9, 10349 (2017).

DOI: 10.1021/acsami.6b16319

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2016年

41. K. Yoshimatsu, H. Okabe, T. Oshima, S. Ueda, and A. Ohtomo, “Strain-induced metal-insulator transition in t2g1 electron system of Sm0.5Ca0.5TiO3 thin films” Phys. Rev. B 93, 195159 (2016).  DOI: 10.1103/PhysRevB.93.195159

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40. K. Yoshimatsu, T. Soma, and A. Ohtomo, “Insulator to metal transition of WO3 epitaxial films induced by electrochemical Li-ion intercalation” Appl. Phys. Express 9, 075802 (2016).  DOI: 10.7567/APEX.9.075802

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39. T. Oshima, R. Wakabayashi, M. Hattori, A. Hashiguchi, N. Kawano, K. Sasaki, T. Masui, A. Kuramata, S. Yamakoshi, K. Yoshimatsu, A. Ohtomo, T. Oishi, and M. Kasu, “Formation of indium tin oxide (ITO) ohmic contacts for β-Ga2O3” Jpn. J. Appl. Phys. 55, 1202B7 (2016).  DOI: 10.7567/JJAP.55.1202B7

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38. K. Watarai, K. Yoshimatsu, K. Horiba, H. Kumigashira, O. Sakata, and A. Ohtomo, “Epitaxial synthesis and physical properties of double-perovskite oxide Sr2CoRuO6 thin films” J. Phys. Condens. Matter 28, 436005 (2016).  

DOI: 10.1088/0953-8984/28/43/436005

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37. M. Hattori, T. Oshima, R. Wakabayashi, K. Yoshimatsu, K. Sasaki, T. Masui, A. Kuramata, S. Yamakoshi, K. Horiba, H. Kumigashira, and A. Ohtomo, "Epitaxial growth and electric properties of γ-Al2O3 (110) films on β-Ga2O3 (010) substrates" Jpn. J. Appl. Phys. 55, 1202B6 (2016).

DOI: 10.7567/JJAP.55.1202B6

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36. T. Soma, K. Yoshimatsu, and A. Ohtomo, “Epitaxial growth of hexagonal tungsten bronze CsxWO3 films in superconducting phase region exceeding bulk limit” Appl. Phys. Express 9, 075801 (2016).

DOI: 10.7567/APEX.9.075801

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35. K. Nakamura, H. Mashiko, K. Yoshimatsu, and A. Ohtomo, "Impact of built-in potential across LaFeO3/SrTiO3 heterojunctions on photocatalytic activity"Appl. Phys. Lett. 108, 211605 (2016).  

DOI: 10.1063/1.4952736

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34. K. Horiba, M. Kitamura, K. Yoshimatsu, M. Minohara, E. Sakai, M. Kobayashi, A. Fujimori, and H. Kumigashira, “Isotropic Kink and Quasiparticle Excitations in the Three-Dimensional Perovskite Manganite La0.6Sr0.4MnO3” Phys. Rev. Lett. 116, 076401 (2016).

DOI: 10.1103/PhysRevLett.116.076401

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33. H. Mashiko, K. Yoshimatsu, T. Oshima, and A. Ohtomo, “Fabrication and Characterization of Semiconductor Photoelectrodes with Orientation-Controlled α-Fe2O3 Thin Films” J. Phys. Chem. C 120, 2747 (2016).

DOI: 10.1021/acs.jpcc.5b10838

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32. T. Yoshida, M. Kobayashi, K. Yoshimatsu, H. Kumigashira, and A. Fujimori, “Correlated electronic states of SrVO3 revealed by angle-resolved photoemission spectroscopy” J. Electron Spectrosc. Relat. Phenom. 208, 11 (2016).

DOI: 10.1016/j.elspec.2015.11.012

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31. R. Yukawa, K. Ozawa, S. Yamamoto, H. Iwasawa, K. Shimada, E. F. Schwier, K. Yoshimatsu, H. Kumigashira, H. Namatame, M.

Taniguchi, and I. Matsuda, “Photon-dressed two-dimensional carriers on the ZnO surface” Phys. Rev. B 94, 165313 (2016). 

DOI: 10.1103/PhysRevB.94.165313

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​2015年

30. K. Yoshimatsu, M. Niwa, H. Mashiko, T. Oshima, and A. Ohtomo, “Reversible superconductor-insulator transition in LiTi2O4 induced by Li-ion electrochemical reaction” Scientific Reports 5, 16325 (2015).

DOI: 10.1038/srep16325

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29.  K. Yoshimatsu, K. Nogami, K. Watarai, K. Horiba, H. Kumigashira, O. Sakata, T. Oshima, and A. Ohtomo, “Synthesis and magnetic properties of double-perovskite oxides La2MnFeO6 thin films” Phys. Rev. B 91, 054421 (2015).

DOI: 10.1103/PhysRevB.91.054421

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28.  K. Yoshimatsu, T. Suzuki, N. Tsuchimine, K. Horiba, H. Kumigashira, T. Oshima, and A. Ohtomo, “Direct Growth of Metallic TiH2 Thin Films by Pulsed-Laser Deposition” Appl. Phys. Express 8, 035801 (2015).

DOI: 10.7567/APEX.8.035801

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27. M. Kobayashi, K. Yoshimatsu, E. Sakai, M. Kitamura, K. Horiba, A. Fujimori, and H. Kumigashira, “Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Strongly Correlated Oxide SrVO3” Phys. Rev. Lett. 115, 076801 (2015).

DOI: 10.1103/PhysRevLett.115.076801

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26. K. Ishigami, K. Yoshimatsu, D. Toyota, M. Takizawa, T. Yoshida, G. Shibata, T. Harano, Y. Takahashi, T. Kadono, V. K. Verma, V. R. Singh, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, T. Koide, M. Oshima, H. Kumigashira, and A. Fujimori “Thickness-dependent magnetic transition and strain-induced orbital magnetic moment in SrRuO3 thin film studied by X-ray magnetic circular dichroism” Phys. Rev. B 92, 064402 (2015).

DOI: 10.1103/PhysRevB.92.064402

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25. H. Suzuki, K. Zhao, G. Shibata, Y. Takahashi, S. Sakamoto, K. Yoshimatsu, B. J. Chen, H. Kumigashira, F. -H. Chang, H. -J. Lin, D. J. Huang, C. T. Chen, B. Gu, S. Maekawa, Y. J. Uemura, C. Q. Jin and A. Fujimori, “Photoemission and X-ray Absorption Studies of the Diluted Magnetic Semiconductor Ba1-yKy(Zn1-xMnx)2As2 isostructural to Fe-based superconductors” Phys. Rev. B 91, 140401(R) (2015).

DOI: 10.1103/PhysRevB.91.140401

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24. T. Oshima, K. Matsuyama, K. Yoshimatsu, and A. Ohtomo, “Conducting Si-doped g-Ga2O3 epitaxial films grown by pulsed-laser deposition” J. Cryst. Growth 421, 23 (2015).

DOI: 10.1016/j.jcrysgro.2015.04.011

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23. R. Wakabayashi T. Oshima, M. Hattori, K. Sasaki, T. Masui, A. Kuramata, S. Yamakoshi, K. Yoshimatsu, and A. Ohtomo “Oxygen-radical-assistedpulsed-laserdepositionof β-Ga2O3 and β-(AlxGa1-x)2O3 films” J. Crst. Growth 424, 77 (2015).

DOI: 10.1016/j.jcrysgro.2015.05.005

 

2014年 (1st: 0, Corresponding: 0, Total: 4)

22. E. Sakai, K. Yoshimatsu, M. Tamamitsu, K. Horiba, A. Fujimori, M. Oshima, and H. Kumigashira, “Bandwidth-controlled metal-insulator transition in epitaxial PrNiO3 ultrathin films induced by dimensional crossover” Appl. Phys. Lett. 104, 171609 (2014).

DOI: 10.1063/1.4874980

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21. G. Shibata, K. Yoshimatsu, E. Sakai, V. R. Singh, V. K. Verma, K. Ishigami, T. Harano, T. Kadono, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, A. Sawa, H. Kumigashira, M. Oshima, T. Koide, and A. Fujimori “Thickness-dependent ferromagnetic metal-to-paramagnetic insulator transition in La0.6Sr0.4MnO3 thin films studied by x-ray magnetic circular dichroism” Phys. Rev. B 89, 235123 (2014).

DOI: 10.1103/PhysRevB.89.235123

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20. 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 ”Photoemission and DMFT study of electronic correlations in SrMoO3: Effects of Hund’s rule coupling and possible plasmonic sideband” Phys. Rev. B 90, 205131 (2014).

DOI: 10.1103/PhysRevB.90.205131

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19. Y. Takahashi, V. K. Verma, G. Shibata, T. Harano, K. Ishigami, K. Yoshimatsu, T. Kadono, A. Fujimori, A. Tanaka, F. -H. Chang, H. -J. Lin, D. J. Huang, C. T. Chen, B. Pal, and D. D. Sarma, “Observation of magnetically hard grain boundaries in double-perovskite Sr2FeMoO6” Europhys. Lett. 108, 27003 (2014).

DOI: 10.1209/0295-5075/108/27003

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​2013年

18. 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, “Spectroscopic studies on the electronic and magnetic states of Co-doped perovskite manganite Pr0.8Ca0.2Mn1-yCoyO3 thin films” Phys. Rev. B 88, 174423 (2013).

DOI: doi.org/10.1103/PhysRevB.88.174423

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17. K. Yoshimatsu, E. Sakai, M. Kobayashi, K. Horiba, T. Yoshida, A. Fujimori, M. Oshima, and H. Kumigashira, “Determination of the surface and interface phase shifts in metallic quantum well structures of perovskite oxides” Phys. Rev. B 88, 115308 (2013).

DOI: 10.1103/PhysRevB.88.115308

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16. K. Nogami, K. Yoshimatsu, H. Mashiko, E. Sakai, H. Kumigashira, O. Sakata, T. Oshima, and A. Ohtomo, “Epitaxial synthesis and electronic properties of double-perovskite Sr2TiRuO6 films” Appl. Phys. Express 6, 105502 (2013).

DOI: 10.7567/APEX.6.105502

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15. E. Sakai, M. Tamamitsu, K. Yoshimatsu, S. Okamoto, K. Horiba, M. Oshima, and H. Kumigashira, “Gradual localization of Ni 3d states in LaNiO3 ultrathin films induced by dimensional crossover.” Phys. Rev. B 87, 075132 (2013).

DOI: 10.1103/PhysRevB.87.075132

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14. J. Fujihira, A. Uchida, S. Fujihira, M. Furuse, M. Okano, S. Fuchino, T. Kadono, K. Yoshimatsu, A. Fujimori, H. Kumigashira and T. Koide, “Development of Cryocooled YBCO Vector Magnet System with Three-axial Super-high Vacuum Bores” J. Cryo. Super. Soc. Jpn. 48, 233 (2013).  DOI: 10.2221/jcsj.48.233

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13. T. Harano, G. Shibata, K. Yoshimatsu, K. Ishigami, V. K. Verma, Y. Takahashi, T. Kadono, T. Yoshida, A. Fujimori, T. Koide, F. –H. Chang, H. –J. Lin, D. –J. Huang, C. –T. Chen, P. –H. Xiang, H. Yamada, and A. Sawa, “Phase diagram of Ca1-xCexMnO3 thin films studied by X-ray magnetic circular dichroism” Sol. Sta. Commun. 174, 30 (2013).

DOI: 10.1016/j.ssc.2013.09.005

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2012年

12. Y. Kozuka, H. Seki, T. C. Fujita, S. Charkraverty, K. Yoshimatsu, H. Kumigashira, M. Oshima, M. S. Bahramy, R. Arita, and M. Kawasaki, “Epitaxially Stabilized EuMoO3: A New Itinerant Ferromagnet” Chem. Mater. 24, 3746 (2012).

DOI: 10.1021/cm302231k

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11. S. Aizaki, T. Yoshida, K. Yoshimatsu, M. Takizawa, M. Minohara, S. Ideta, A. Fujimori, K. Gupta, P. Mahadevan, K. Horiba, H. Kumigashira, and M. Oshima, “Self-Energy Effects on the Electronic Structure of SrVO3 Studied by Angle-Resolved Photoemission Spectroscopy” Phys. Rev. Lett. 109, 056401 (2012).  

DOI: 10.1103/PhysRevLett.109.056401

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10. E. B. Guedes, M. Abbate, K. Ishigami, A. Fujimori, K. Yoshimatsu, H. Kumigashira, M. Oshima, F. C. Vicentin, P. T. Fonseca, and R. J. O. Mossanek, “Core level and valence band spectroscopy of SrRuO3: Electron correlation and covalence effects” Phys. Rev. B 86, 235127 (2012).  DOI: 10.1103/PhysRevB.86.235127​

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2011年

9. K. Yoshimatsu, K. Horiba, H. Kumigashira, T. Yoshida, A. Fujimori, and M. Oshima, “Metallic Quantum Well States in Artificial Structures of Strongly Correlated Oxide” Science 333, 319 (2011). 

DOI:10.1126/science.1205771

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8. S. Chakraverty, K. Yoshimatsu, Y. Kozuka, H. Kumigashira, M. Oshima, T. Makino, A. Ohtomo, and M. Kawasaki, “Magnetic and electronic properties of ordered double-perovskite La2VMnO6 thin films” Phys. Rev. B 84, 132411 (2011).

DOI: 10.1103/PhysRevB.84.132411

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7. E. Sakai, K. Yoshimatsu, K. Shibuya, H. Kumigashira, E. Ikenaga, M. Kawasaki, Y. Tokura and M. Oshima, "Competition between instabilities of Peierls transition and Mott transition in W-doped VO2 thin films" Phys. Rev. B 84, 195132 (2011).

DOI: 10.1103/PhysRevB.84.195132

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2010年

6. K. Yoshimatsu, T. Okabe, H. Kumigashira, S. Okamoto, S. Aizaki, A. Fujimori, and M. Oshima, “Dimensional-Crossover-Driven Metal-Insulator Transition in SrVO3 Ultrathin Films.” Phys. Rev. Lett. 104, 147601 (2010).

DOI: 10.1103/PhysRevLett.104.147601

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​2009年

5. K. Yoshimatsu, R. Yasuhara, H. Kumigashira and M. Oshima, "Yoshimatsu et al. Reply" Phys. Rev. Lett. 102, 199704 (2009).  

DOI: 10.1103/PhysRevLett.102.199704

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4. K. Yoshimatsu, K. Horiba, H. Kumigashira, E. Ikenaga, and M. Oshima, “Thickness dependent electronic structure of La0.6Sr0.4MnO3 layer in SrTiO3/La0.6Sr0.4MnO3/SrTiO3 heterostructures studied by hard x–ray photoemission spectroscopy” Appl. Phys. Lett. 94, 071901 (2009). 

DOI: 10.1063/1.3081016

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3. M. Matvejeff, K. Yoshimatsu, H. Kumigashira, M. Oshima, and M. Lippmaa “Chemical stability and transport properties of ultrathin La1.2Sr1.8Mn2O7 Ruddlesden-Popper films” Appl. Phys. Lett, 95, 152110 (2009).  

DOI: /10.1063/1.3243978

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2. K. Horiba, A. Maniwa, A. Chikamatsu, K. Yoshimatsu, H. Kumigashira, H. Wadati, A. Fujimori, S. Ueda, H. Yoshikawa, E. Ikenaga, J. J. Kim, K. Kobayashi, and M. Oshima “Pressure-induced change in the electronic structure of epitaxially strained La1-xSrxMnO3 thin films" Phys. Rev. B 80, 132406 (2009).  

DOI: 10.1103/PhysRevB.80.132406

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2008年​

1. K. Yoshimatsu, R. Yasuhara, H. Kumigashira, and M. Oshima, "Origin of metallic states at the heterointerface between the band insulators LaAlO3 and SrTiO3" Phys. Rev. Lett. 101,026802 (2008).

DOI: 10.1103/PhysRevLett.101.026802