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

Philip B. Allen; Vasili Perebeinos

doi:10.1103/physrevlett.83.4828

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arXiv · cond-mat/9910216

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

Philip B. Allen·Vasili Perebeinos

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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.

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Philip B. Allen, Vasili Perebeinos. 1999-10-14. Self-trapped Exciton and Franck-Condon Spectra Predicted in LaMnO$_3$. https://doi.org/10.1103/physrevlett.83.4828

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