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The AMO{sub 3} perovskites containing a first-row transition-metal atom M allow study of the cross-over from localized to itinerant electronic behavior in a single-valent MO{sub 3} array dominated by (180 deg. -{phi}) M-O-M interactions. The LnNiO{sub 3} perovskites with Ln a lanthanide have one electron per low-spin Ni(III) in a narrow {sigma} band that approaches cross-over from the itinerant-electron side. Transport measurements are reported that add to the mounting evidence for a heterogeneous electronic transition in the perovskites rather than the homogeneous transition assumed in conventional treatments of the Mott-Hubbard transition.
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| Authors: |
Goodenough, J. B.;
Zhou, J.-S. [Texas Materials Institute, ETC 9.102, University of Texas at Austin, Austin, Texas 78712-1063 (United States)];
Dabrowski, B. [Department of Physics, Northern Illinois University, DeKalb, Illinois 60116 (United States)]
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| Publication Date: | 1999 Sep 01 |
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| OSTI Identifier: | 21208284 |
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| Resource Type: | Journal Article |
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| Resource Relation: | Journal Name: AIP Conference Proceedings; Journal Volume: 483; Journal Issue: 1; Conference: 1999 University of Miami conference on high temperature superconductivity, Coral Gables, FL (United States), 7-13 Jan 1999; Other Information: DOI: 10.1063/1.59639; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA) |
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| Country of Publication: | United States |
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| Language: | English |
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| Format: | Size: page(s) 388-393 |
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| Other Number(s): | Journal ID: ISSN 0094-243X; APCPCS; TRN: US08B5790079033 |
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| Subject: | 36 MATERIALS SCIENCE; CHEMICAL BONDS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRON-PHONON COUPLING; ELECTRONS; HIGH-TC SUPERCONDUCTORS; LANTHANUM COMPOUNDS; NICKEL OXIDES; PEROVSKITES; PHASE DIAGRAMS; SPIN; SYMMETRY; X-RAY DIFFRACTION |
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| Update Date: | 2010 Jun 03 |
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