Electron transport in TiO2 probed by THz time-domain spectroscopy

E. Hendry, F. Wang, Jie Shan, T. F. Heinz, M. Bonn

Research output: Contribution to journalArticle

174 Citations (Scopus)

Abstract

Electron transport in crystalline TiO2 (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.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number8
DOIs
StatePublished - Jan 1 2004

Fingerprint

Spectroscopy
Gene Conversion
Phonon scattering
Electrons
Electron mobility
spectroscopy
Anisotropy
electrons
Scattering
Crystalline materials
scattering
electron mobility
rutile
conductivity
anisotropy
Temperature
Electron Transport
temperature
titanium dioxide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Hendry, E. ; Wang, F. ; Shan, Jie ; Heinz, T. F. ; Bonn, M. / Electron transport in TiO2 probed by THz time-domain spectroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 69, No. 8.
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Electron transport in TiO2 probed by THz time-domain spectroscopy. / Hendry, E.; Wang, F.; Shan, Jie; Heinz, T. F.; Bonn, M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 69, No. 8, 01.01.2004.

Research output: Contribution to journalArticle

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AB - Electron transport in crystalline TiO2 (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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