Bloch electrons in a Jahn-Teller crystal and an orbital-density-wave state due to the Berry phase

Preprint

12 January 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9801093

Abstract

The effect of the Berry phase is included explicitly in the wavefunction describing conduction electrons in a crystal composed of periodically arrayed Jahn-Teller centers that have conically intersecting potential energy surfaces. The Berry phase can make a drastic change in the band structure, leading generally to the formation of an orbital-density-wave state. We discuss implications of our theory and possible relations to the orbital ordering observed in the manganese perovskites.

Keywords

ORBITAL DENSITY
BLOCH ELECTRONS
TELLER CRYSTAL
BAND STRUCTURE
DENSITY WAVE
PEROVSKITES
JAHN TELLER

All Related Versions

Version 1, 1998-01-12, ArXiv
Published version: Physical Review Letters, 80 (20), 4518.

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