Orbital ordering and frustrations
| Autor: | DI Khomskii, Maxim Mostovoy |
|---|---|
| Přispěvatelé: | Zernike Institute for Advanced Materials, Theory of Condensed Matter, Surfaces and Thin Films |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
DISORDER
media_common.quotation_subject FOS: Physical sciences General Physics and Astronomy Frustration Crystal structure Ion PHYSICS Condensed Matter - Strongly Correlated Electrons KUGEL-KHOMSKII MODEL Transition metal Hexagonal lattice OXIDES Mathematical Physics media_common Physics Condensed Matter - Materials Science Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Degenerate energy levels Materials Science (cond-mat.mtrl-sci) Statistical and Nonlinear Physics FLUCTUATIONS Transition metal ions SPIN LINIO2 LATIO3 LIQUID Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Journal of Physics A-Mathematical and General, 36(35):PII S0305-4470(03)59765-7, 9197-9207. IOP PUBLISHING LTD |
| ISSN: | 0305-4470 |
| Popis: | An orbital ordering occurs in many transition metal compounds with Jahn-Teller ions and plays an important role in these materials. At the same time, exchange interactions in orbitally degenerate systems are inherently frustrated, even in materials with simple crystal lattices. We discuss the origin of this frustration, considering in detail materials with a cubic and triangular lattice of transition metal ions. We also discuss possible types of ground states of such systems, e.g., disordered orbital liquids and ordering due to the order-from-disorder mechanism. 6 figures, accepted for publication in Journal of Physics A: Mathematical and General |
| Databáze: | OpenAIRE |
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