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

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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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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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, 56(24).