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Title: Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy

Abstract

We use cyclotron resonance THz-spectroscopy in pulsed magnetic fields up to 63 T to measure the electron effective mass in Si-doped GaAsN semiconductor alloys with nitrogen content up to 0.2%. This technique directly probes the transport properties of the N-modified conduction band, particularly the electron effective mass, which has been discussed controversially in the experimental and theoretical literature. We report a slight increase of the electron effective mass and nonparabolicity with N-content for different photon energies in agreement with the two-level band anticrossing model calculations. Furthermore, we show a pronounced electron mobility drop with increasing N-content.

Authors:
;  [1]; ; ;  [2];  [3]
  1. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstraße 400, 01328 Dresden (Germany)
  2. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)
  3. Helmholtz-Zentrum Dresden-Rossendorf, Dresden High Magnetic Field Laboratory, Bautzner Landstraße 400, 01328 Dresden (Germany)
Publication Date:
OSTI Identifier:
22489085
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALLOYS; CYCLOTRON RESONANCE; DOPED MATERIALS; EFFECTIVE MASS; ELECTRON MOBILITY; ELECTRONS; MAGNETIC FIELDS; NITROGEN; PHOTONS; SEMICONDUCTOR MATERIALS; SPECTROSCOPY

Citation Formats

Eßer, F., Helm, M., Technische Universität Dresden, 01062 Dresden, Drachenko, O., Winnerl, S., Schneider, H., E-mail: h.schneider@hzdr.de, Patanè, A., and Ozerov, M. Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy. United States: N. p., 2015. Web. doi:10.1063/1.4928623.
Eßer, F., Helm, M., Technische Universität Dresden, 01062 Dresden, Drachenko, O., Winnerl, S., Schneider, H., E-mail: h.schneider@hzdr.de, Patanè, A., & Ozerov, M. Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy. United States. https://doi.org/10.1063/1.4928623
Eßer, F., Helm, M., Technische Universität Dresden, 01062 Dresden, Drachenko, O., Winnerl, S., Schneider, H., E-mail: h.schneider@hzdr.de, Patanè, A., and Ozerov, M. 2015. "Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy". United States. https://doi.org/10.1063/1.4928623.
@article{osti_22489085,
title = {Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy},
author = {Eßer, F. and Helm, M. and Technische Universität Dresden, 01062 Dresden and Drachenko, O. and Winnerl, S. and Schneider, H., E-mail: h.schneider@hzdr.de and Patanè, A. and Ozerov, M.},
abstractNote = {We use cyclotron resonance THz-spectroscopy in pulsed magnetic fields up to 63 T to measure the electron effective mass in Si-doped GaAsN semiconductor alloys with nitrogen content up to 0.2%. This technique directly probes the transport properties of the N-modified conduction band, particularly the electron effective mass, which has been discussed controversially in the experimental and theoretical literature. We report a slight increase of the electron effective mass and nonparabolicity with N-content for different photon energies in agreement with the two-level band anticrossing model calculations. Furthermore, we show a pronounced electron mobility drop with increasing N-content.},
doi = {10.1063/1.4928623},
url = {https://www.osti.gov/biblio/22489085}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 6,
volume = 107,
place = {United States},
year = {Mon Aug 10 00:00:00 EDT 2015},
month = {Mon Aug 10 00:00:00 EDT 2015}
}