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Temperature Dependence of Optical Spectra for the CDW Gap and Optical Phonons in BaBiO_3

Hyun-Tak Kim·Hidetoshi Minami·Hiromoto Uwe
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Abstract

We have studied the temperature dependence of the optical spectra for the CDW gap and optical phonons in a single crystal of BaBiO_3 and a film deposited by laser ablation. The integrated optical conductivity for optical phonons decreases rapidly with increasing temperature above 150 K, while the single-particle excitation across the CDW gap remains constant.

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Hyun-Tak Kim, Hidetoshi Minami, Hiromoto Uwe. 2003-03-21. Temperature Dependence of Optical Spectra for the CDW Gap and Optical Phonons in BaBiO_3. https://arxiv.org/abs/cond-mat/0303442

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