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Elevated temperatur...
Elevated temperature dependence of the anisotropic visible-to-ultraviolet dielectric function of monoclinic beta-Ga2O3
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- Mock, A. (author)
- Univ Nebraska, USA
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- VanDerslice, J. (author)
- JA Woollam Co Inc, USA
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- Korlacki, R. (author)
- Univ Nebraska, USA
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- Woollam, J. A. (author)
- Univ Nebraska, USA; JA Woollam Co Inc, USA
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- Schubert, Mathias (author)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten,Univ Nebraska, USA; Leibniz Inst Polymer Res Dresden, Germany
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(creator_code:org_t)
- AMER INST PHYSICS, 2018
- 2018
- English.
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In: Applied Physics Letters. - : AMER INST PHYSICS. - 0003-6951 .- 1077-3118. ; 112:4
- Related links:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We report on the temperature dependence of the dielectric tensor elements of n-type conductive beta-Ga2O3 from 22 degrees C to 550 degrees C in the spectral range of 1.5 eV-6.4 eV. We present the temperature dependence of the excitonic and band-to-band transition energy parameters using a previously described eigendielectric summation approach [A. Mock et al., Phys. Rev. B 96, 245205 (2017)]. We utilize a Bose-Einstein analysis of the temperature dependence of the observed transition energies and reveal electron coupling with average phonon temperature in excellent agreement with the average over all longitudinal phonon plasmon coupled modes reported previously [M. Schubert et al., Phys. Rev. B 93, 125209 (2016)]. We also report a linear temperature dependence of the wavelength independent Cauchy expansion coefficient for the anisotropic below-band-gap monoclinic dielectric tensor elements. Published by AIP Publishing.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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