Hubbard splitting and electron correlation in the ferromagnetic metal CrO2

T. Tsujioka, Takashi Mizokawa, J. Okamoto, A. Fujimori, M. Nohara, H. Takagi, K. Yamaura, M. Takano

Research output: Contribution to journalArticle

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Abstract

We have studied the electronic structure of CrO2 by photoemission spectroscopy and specific heat measurements. The Cr 3d band shows a splitting into the upper and lower Hubbard bands with a small but finite density of states at the Fermi level, consistent with its metallic behavior. The small renormalization factor (z∼0.1≪1) signifies strong electron correlation, but is still large compared with many 3d transition-metal oxides.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number24
Publication statusPublished - 1997 Dec 15
Externally publishedYes

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Thermal variables measurement
Electron correlations
Ferromagnetic materials
Photoelectron spectroscopy
Fermi level
Oxides
Specific heat
Electronic structure
Transition metals
metals
metal oxides
electrons
photoelectric emission
heat measurement
transition metals
specific heat
electronic structure
heat
spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Tsujioka, T., Mizokawa, T., Okamoto, J., Fujimori, A., Nohara, M., Takagi, H., ... Takano, M. (1997). Hubbard splitting and electron correlation in the ferromagnetic metal CrO2. Physical Review B - Condensed Matter and Materials Physics, 56(24).

Hubbard splitting and electron correlation in the ferromagnetic metal CrO2. / Tsujioka, T.; Mizokawa, Takashi; Okamoto, J.; Fujimori, A.; Nohara, M.; Takagi, H.; Yamaura, K.; Takano, M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 56, No. 24, 15.12.1997.

Research output: Contribution to journalArticle

Tsujioka, T, Mizokawa, T, Okamoto, J, Fujimori, A, Nohara, M, Takagi, H, Yamaura, K & Takano, M 1997, 'Hubbard splitting and electron correlation in the ferromagnetic metal CrO2', Physical Review B - Condensed Matter and Materials Physics, vol. 56, no. 24.
Tsujioka, T. ; Mizokawa, Takashi ; Okamoto, J. ; Fujimori, A. ; Nohara, M. ; Takagi, H. ; Yamaura, K. ; Takano, M. / Hubbard splitting and electron correlation in the ferromagnetic metal CrO2. In: Physical Review B - Condensed Matter and Materials Physics. 1997 ; Vol. 56, No. 24.
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