期刊
PHYSICAL REVIEW B
卷 83, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.205123
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资金
- Russian Foundation for Basic Research [10-02-92600-KO, 11-02-00708, 11-02-91335-NNIO]
- Deutsche Forschungsgemeinshaft [SFB 608]
- German-Russian Projects [436RUS 113/942/0, GR1484/2-1]
- European project SOPRANO
- Dynasty Foundation
We show that the usual approach directly relating the orbital occupation of Jahn-Teller ions to the displacements of neighboring ligands may be misleading. For the correct identification of orbital structure, it is necessary to take self-consistently into account the electron-lattice interaction, kinetic energy of charge carriers, and crystal-field effects. We demonstrate it on the example of the CE phase of the single-layer manganite La0.5Sr1.5MnO4, in which the type of orbital ordering strongly deviates from that which one would deduce from the local lattice distortions.
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