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Polaronic Signatures in Mid-Infrared Spectra: Prediction for LaMnO3 and CaMnO3

Yiing-Rei Chen·Vasili Perebeinos·Philip B. Allen
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Abstract

Hole-doped LaMnO3 and electron-doped CaMnO3 form self-trapped electronic states. The spectra of these states have been calculated using a two orbital (Mn eg Jahn-Teller) model, from which the non-adiabatic optical conductivity spectra are obtained. In both cases the optical spectrum contains weight in the gap region, whose observation will indicate the self-trapped nature of the carrier states. The predicted spectra are proportional to the concentration of the doped carriers in the dilute regime, with coefficients calculated with no further model parameters.

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Yiing-Rei Chen, Vasili Perebeinos, Philip B. Allen. 2001-11-19. Polaronic Signatures in Mid-Infrared Spectra: Prediction for LaMnO3 and CaMnO3. https://doi.org/10.1103/physrevb.65.205207

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