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Band theory and the insulating gap in CoO

Physical Review B, ISSN: 0163-1829, Vol: 40, Issue: 15, Page: 10632-10634
1989
  • 11
    Citations
  • 0
    Usage
  • 19
    Captures
  • 0
    Mentions
  • 0
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    11
    • Citation Indexes
      11
  • Captures
    19

Article Description

Results of three magnetic-polarized local-density calculations on the Mott insulator CoO are presented: (1) a spin-polarized calculation in the type-II antiferromagnetic (AF) state, (2) a spin-polarized calculation in the observed bct AF state, and (3) a moment-polarized calculation in the type-II AF state with spin-orbit coupling. In all three cases, a large density of states at the Fermi energy is found. It is concluded that the insulating behavior of CoO is intimately connected to the formation of a multideterminant ground state and is therefore outside the bounds of standard band theory. © 1989 The American Physical Society.

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