Electron transport in probed by THz time-domain spectroscopy
Electron transport in crystalline TiO 2 (rutile phase) is investigated by frequency-dependent
conductivity measurements using THz time-domain spectroscopy. Transport is limited by
electron-phonon coupling, resulting in a strongly temperature-dependent electron-optical
phonon scattering rate, with significant anisotropy in the scattering process. The
experimental findings can be described by Feynman polaron theory within the intermediate
coupling regime and allow for a determination of electron mobility.
conductivity measurements using THz time-domain spectroscopy. Transport is limited by
electron-phonon coupling, resulting in a strongly temperature-dependent electron-optical
phonon scattering rate, with significant anisotropy in the scattering process. The
experimental findings can be described by Feynman polaron theory within the intermediate
coupling regime and allow for a determination of electron mobility.
Abstract
Electron transport in crystalline TiO 2 (rutile phase) is investigated by frequency-dependent conductivity measurements using THz time-domain spectroscopy. Transport is limited by electron-phonon coupling, resulting in a strongly temperature-dependent electron-optical phonon scattering rate, with significant anisotropy in the scattering process. The experimental findings can be described by Feynman polaron theory within the intermediate coupling regime and allow for a determination of electron mobility.
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