Electronic structure of Mott-Hubbard-type transition-metal oxides

A. Fujimori, T. Yoshida, K. Okazaki, T. Tsujioka, K. Kobayashi, Takashi Mizokawa, M. Onoda, Takuro Katsufuji, Y. Taguchi, Y. Tokura

研究成果: Article

23 引用 (Scopus)

抄録

Oxides of Ti and V belong to the Mott-Hubbard regime of the Zaanen-Sawatzky-Allen classification scheme of transition-metal compounds and have simple electronic structures which allow us to study the effect of electron correlation in a transparent way. In this article, we make an overview of our recent photoemission studies on Ti and V oxides, with special emphasis on metal-insulator transitions induced by the control of the width and the filling of the Ti and V 3d bands. Spectroscopic data yield spectral weight transfer between the coherent and incoherent parts of the d band, the spectral intensities at the Fermi level and the chemical potential shifts as functions of band filling. We show that such spectroscopic information well corresponds to the thermodynamic and transport properties and is necessary to understand electron correlation phenomena from a fundamental viewpoint.

元の言語English
ページ(範囲)277-286
ページ数10
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
117-118
DOI
出版物ステータスPublished - 2001 6
外部発表Yes

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Electron correlations
Oxides
Electronic structure
Transition metals
metal oxides
transition metals
Transition metal compounds
electronic structure
Electron transport properties
Metal insulator transition
Chemical potential
Photoemission
Fermi level
Thermodynamic properties
oxides
metal compounds
electrons
photoelectric emission
thermodynamic properties
transport properties

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

これを引用

Electronic structure of Mott-Hubbard-type transition-metal oxides. / Fujimori, A.; Yoshida, T.; Okazaki, K.; Tsujioka, T.; Kobayashi, K.; Mizokawa, Takashi; Onoda, M.; Katsufuji, Takuro; Taguchi, Y.; Tokura, Y.

:: Journal of Electron Spectroscopy and Related Phenomena, 巻 117-118, 06.2001, p. 277-286.

研究成果: Article

Fujimori, A, Yoshida, T, Okazaki, K, Tsujioka, T, Kobayashi, K, Mizokawa, T, Onoda, M, Katsufuji, T, Taguchi, Y & Tokura, Y 2001, 'Electronic structure of Mott-Hubbard-type transition-metal oxides', Journal of Electron Spectroscopy and Related Phenomena, 巻. 117-118, pp. 277-286. https://doi.org/10.1016/S0368-2048(01)00253-5
Fujimori, A. ; Yoshida, T. ; Okazaki, K. ; Tsujioka, T. ; Kobayashi, K. ; Mizokawa, Takashi ; Onoda, M. ; Katsufuji, Takuro ; Taguchi, Y. ; Tokura, Y. / Electronic structure of Mott-Hubbard-type transition-metal oxides. :: Journal of Electron Spectroscopy and Related Phenomena. 2001 ; 巻 117-118. pp. 277-286.
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abstract = "Oxides of Ti and V belong to the Mott-Hubbard regime of the Zaanen-Sawatzky-Allen classification scheme of transition-metal compounds and have simple electronic structures which allow us to study the effect of electron correlation in a transparent way. In this article, we make an overview of our recent photoemission studies on Ti and V oxides, with special emphasis on metal-insulator transitions induced by the control of the width and the filling of the Ti and V 3d bands. Spectroscopic data yield spectral weight transfer between the coherent and incoherent parts of the d band, the spectral intensities at the Fermi level and the chemical potential shifts as functions of band filling. We show that such spectroscopic information well corresponds to the thermodynamic and transport properties and is necessary to understand electron correlation phenomena from a fundamental viewpoint.",
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AU - Fujimori, A.

AU - Yoshida, T.

AU - Okazaki, K.

AU - Tsujioka, T.

AU - Kobayashi, K.

AU - Mizokawa, Takashi

AU - Onoda, M.

AU - Katsufuji, Takuro

AU - Taguchi, Y.

AU - Tokura, Y.

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Y1 - 2001/6

N2 - Oxides of Ti and V belong to the Mott-Hubbard regime of the Zaanen-Sawatzky-Allen classification scheme of transition-metal compounds and have simple electronic structures which allow us to study the effect of electron correlation in a transparent way. In this article, we make an overview of our recent photoemission studies on Ti and V oxides, with special emphasis on metal-insulator transitions induced by the control of the width and the filling of the Ti and V 3d bands. Spectroscopic data yield spectral weight transfer between the coherent and incoherent parts of the d band, the spectral intensities at the Fermi level and the chemical potential shifts as functions of band filling. We show that such spectroscopic information well corresponds to the thermodynamic and transport properties and is necessary to understand electron correlation phenomena from a fundamental viewpoint.

AB - Oxides of Ti and V belong to the Mott-Hubbard regime of the Zaanen-Sawatzky-Allen classification scheme of transition-metal compounds and have simple electronic structures which allow us to study the effect of electron correlation in a transparent way. In this article, we make an overview of our recent photoemission studies on Ti and V oxides, with special emphasis on metal-insulator transitions induced by the control of the width and the filling of the Ti and V 3d bands. Spectroscopic data yield spectral weight transfer between the coherent and incoherent parts of the d band, the spectral intensities at the Fermi level and the chemical potential shifts as functions of band filling. We show that such spectroscopic information well corresponds to the thermodynamic and transport properties and is necessary to understand electron correlation phenomena from a fundamental viewpoint.

KW - Chemical potential shift

KW - Hubbard bands

KW - Mott transition

KW - Spectral weight transfer

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