Localized to itinerant electronic transitions in transition-metal oxides with the perovskite structure

Journal Article · Thu Oct 01 00:00:00 EDT 1998 · Chemistry of Materials

DOI:https://doi.org/10.1021/cm980276u· OSTI ID:675624

Goodenough, J B; Zhou, J S ^[1]

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1. Univ. of Texas, Austin, TX (United States). Center for Materials Science and Engineering

The transition from localized to itinerant electronic behavior is shown to be first-order. In a perovskite, segregation into localized-electron and itinerant-electron phases can be accomplished by cooperative atomic displacements. Sr{sub 1{minus}x}Ca{sub x}VO{sub 3} and La{sub 1{minus}x}Nd{sub x}CuO{sub 3} illustrate single-valent perovskites that exhibit localized-electron fluctuations in an itinerant-electron matrix on approaching the Mott-Hubbard transition, and CaFeO{sub 3} and NdNiO{sub 3} form charge-density waves with MO complexes or itinerant-electron slabs alternating with localized-electron states.

• OSTI ID: 675624
• Journal Information: Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 10 Vol. 10; ISSN CMATEX; ISSN 0897-4756
• Country of Publication: United States
• Language: English

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NICKEL OXIDES
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