Charge and spin ordering in perovskite manganites
| Autor: | Jun-ichiro Inoue, N. Kurauchi, T. Ohsawa |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Coupling
Physics Condensed matter physics Degenerate energy levels Degrees of freedom (physics and chemistry) Charge (physics) General Chemistry Condensed Matter Physics Mean field theory Ferromagnetism Condensed Matter::Strongly Correlated Electrons General Materials Science Spin (physics) Ground state |
| Zdroj: | Journal of Physics and Chemistry of Solids. 62:309-312 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/s0022-3697(00)00153-0 |
| Popis: | A magnetic phase diagram of the ground state of perovskite manganites is studied in a mean field approximation by putting emphasis on the coupling of charge and spin degrees of freedom. It is shown that a characteristic feature of the ground state observed near the quarter-filling can be reproduced, that is, the charge ordered state with a spin spiral ordering appears, being nearly degenerate with the fully polarized ferromagnetic state. Coupling of orbital and charge degrees of freedom and the electronic phase separation are also examined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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