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Title: Temperature dependence of the dielectric function in the spectral range (0.5–8.5) eV of an In{sub 2}O{sub 3} thin film

Abstract

We present the dielectric function of a bcc-In{sub 2}O{sub 3} thin film in the wide spectral range from near-infrared to vacuum-ultraviolet and for temperatures 10 K–300 K, determined by spectroscopic ellipsometry. From the temperature dependence of electronic transition energies, we derive electron-phonon coupling properties and found hints that the direct parabolic band-band transitions involve In-d states. Further we discuss possible excitonic contributions to the dielectric function.

Authors:
; ; ; ;  [1]
  1. Institut für Experimentelle Physik II, Universität Leipzig, Linnéstr. 5, 04103 Leipzig (Germany)
Publication Date:
OSTI Identifier:
22303506
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BCC LATTICES; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; ELECTRON-PHONON COUPLING; ELLIPSOMETRY; EV RANGE; INDIUM OXIDES; TEMPERATURE DEPENDENCE; THIN FILMS; ULTRAVIOLET RADIATION

Citation Formats

Schmidt-Grund, R., E-mail: Schmidt-Grund@physik.uni-leipzig.de, Krauß, H., Kranert, C., Bonholzer, M., and Grundmann, M. Temperature dependence of the dielectric function in the spectral range (0.5–8.5) eV of an In{sub 2}O{sub 3} thin film. United States: N. p., 2014. Web. doi:10.1063/1.4896321.
Schmidt-Grund, R., E-mail: Schmidt-Grund@physik.uni-leipzig.de, Krauß, H., Kranert, C., Bonholzer, M., & Grundmann, M. Temperature dependence of the dielectric function in the spectral range (0.5–8.5) eV of an In{sub 2}O{sub 3} thin film. United States. doi:10.1063/1.4896321.
Schmidt-Grund, R., E-mail: Schmidt-Grund@physik.uni-leipzig.de, Krauß, H., Kranert, C., Bonholzer, M., and Grundmann, M. Mon . "Temperature dependence of the dielectric function in the spectral range (0.5–8.5) eV of an In{sub 2}O{sub 3} thin film". United States. doi:10.1063/1.4896321.
@article{osti_22303506,
title = {Temperature dependence of the dielectric function in the spectral range (0.5–8.5) eV of an In{sub 2}O{sub 3} thin film},
author = {Schmidt-Grund, R., E-mail: Schmidt-Grund@physik.uni-leipzig.de and Krauß, H. and Kranert, C. and Bonholzer, M. and Grundmann, M.},
abstractNote = {We present the dielectric function of a bcc-In{sub 2}O{sub 3} thin film in the wide spectral range from near-infrared to vacuum-ultraviolet and for temperatures 10 K–300 K, determined by spectroscopic ellipsometry. From the temperature dependence of electronic transition energies, we derive electron-phonon coupling properties and found hints that the direct parabolic band-band transitions involve In-d states. Further we discuss possible excitonic contributions to the dielectric function.},
doi = {10.1063/1.4896321},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 11,
volume = 105,
place = {United States},
year = {2014},
month = {9}
}