Temperature Dependence of Optical Spectra for the CDW Gap and Optical Phonons in BaBiO₃
Kim, Hyun-Tak · Minami, Hidetoshi · Uwe, Hiromoto
Original · EN
We have studied the temperature dependence of the optical spectra for the CDW gap and optical phonons in a single crystal of BaBiO₃ 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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