Self-trapped Exciton and Franck-Condon Spectra Predicted in LaMnO$_3$

Preprint

14 October 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9910216

Abstract

Because the ground state has cooperative Jahn-Teller order, electronic excitations in LaMnO$_3$ 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 are reinterpreted in this way. The Raman spectrum is predicted to have strong multiphonon features.

Keywords

SPECTRA PREDICTED
TRAPPED EXCITON
CONDON SPECTRA
FRANCK CONDON
REARRANGEMENT
COOPERATIVE
LAMNO

All Related Versions

Version 1, 1999-10-14, ArXiv
Published version: Physical Review Letters, 83 (23), 4828.

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