Electronic structure and Fermi surface of UC studied by high-resolution angle-resolved photoemission spectroscopy

T. Ito; H. Kumigashira; T. Takahashi; E. Yamamoto; Y. Haga; Y. Onuki

doi:10.1016/S0304-8853(00)00743-5

Electronic structure and Fermi surface of UC studied by high-resolution angle-resolved photoemission spectroscopy

T. Ito, H. Kumigashira, T. Takahashi, E. Yamamoto, Y. Haga, Y. Onuki

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy on UC to study the band structure and Fermi surface. The valence band structure away from the Fermi level (E_F) consisting mainly of the C 2p states shows a qualitatively good agreement with the band calculation, suggesting a negligible correlation effect in the C 2p states. In contrast, we found a remarkable narrowing of bands near E_F around W point in the Brillouin zone, where a substantial contribution of U 5f states is predicted from the calculation. This suggests the importance of taking into account the correlation effect of U 5f electrons for understanding the electronic structure and physical properties of UC.

Original language	English
Pages (from-to)	40-41
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	226-230
Issue number	PART I
DOIs	https://doi.org/10.1016/S0304-8853(00)00743-5
Publication status	Published - 2001 Jan 1

Keywords

Actinide compounds
Band structure
Fermi surface
Photoemission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "We have performed high-resolution angle-resolved photoemission spectroscopy on UC to study the band structure and Fermi surface. The valence band structure away from the Fermi level (EF) consisting mainly of the C 2p states shows a qualitatively good agreement with the band calculation, suggesting a negligible correlation effect in the C 2p states. In contrast, we found a remarkable narrowing of bands near EF around W point in the Brillouin zone, where a substantial contribution of U 5f states is predicted from the calculation. This suggests the importance of taking into account the correlation effect of U 5f electrons for understanding the electronic structure and physical properties of UC.",

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T1 - Electronic structure and Fermi surface of UC studied by high-resolution angle-resolved photoemission spectroscopy

AU - Ito, T.

AU - Kumigashira, H.

AU - Takahashi, T.

AU - Yamamoto, E.

AU - Haga, Y.

AU - Onuki, Y.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - We have performed high-resolution angle-resolved photoemission spectroscopy on UC to study the band structure and Fermi surface. The valence band structure away from the Fermi level (EF) consisting mainly of the C 2p states shows a qualitatively good agreement with the band calculation, suggesting a negligible correlation effect in the C 2p states. In contrast, we found a remarkable narrowing of bands near EF around W point in the Brillouin zone, where a substantial contribution of U 5f states is predicted from the calculation. This suggests the importance of taking into account the correlation effect of U 5f electrons for understanding the electronic structure and physical properties of UC.

AB - We have performed high-resolution angle-resolved photoemission spectroscopy on UC to study the band structure and Fermi surface. The valence band structure away from the Fermi level (EF) consisting mainly of the C 2p states shows a qualitatively good agreement with the band calculation, suggesting a negligible correlation effect in the C 2p states. In contrast, we found a remarkable narrowing of bands near EF around W point in the Brillouin zone, where a substantial contribution of U 5f states is predicted from the calculation. This suggests the importance of taking into account the correlation effect of U 5f electrons for understanding the electronic structure and physical properties of UC.

KW - Actinide compounds

KW - Band structure

KW - Fermi surface

KW - Photoemission

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