Self-trapped exciton and Franck-Condon spectra predicted in LaMnO3

被引：90

作者：

Allen, PB ^{[1
]}

Perebeinos, V ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.83.4828

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Because the ground state has cooperative Jahn-Teller order, electronic excitations in LaMnO3 are predicted to self-trap by local rearrangement of the lattice. The optical spectrum should show a Franck-Condon series, that is, a Gaussian envelope of vibrational sidebands. Existing data ale reinterpreted in this way. The Raman spectrum is predicted to have strong multiphonon features.

引用

页码：4828 / 4831

页数：4

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