Longitudinal-Optical-Phonon-Plasmon Coupling in GaAs

dc.contributor.author Olson, C. G.
dc.contributor.author Lynch, David
dc.contributor.author Lynch, David
dc.contributor.department Physics and Astronomy
dc.date 2018-02-15T18:03:16.000
dc.date.accessioned 2020-06-30T06:17:01Z
dc.date.available 2020-06-30T06:17:01Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1969
dc.date.embargo 2015-01-15
dc.date.issued 1969
dc.description.abstract <p>Infrared reflectivity measurements have been made at 78°K on three samples of GaAs, doped with Te so that the plasma frequency is nearly equal to the long-wavelength LO phonon frequency. There are two prominent dips in the reflectivity spectra, but instead of occurring near the plasma frequency and LO mode frequency, they occur at the frequencies of the two normal modes of the coupled plasmon-LO-phonon system, as predicted by Varga and by Singwi and Tosi. From the reflectivity spectra at 78°K, values of the electron effective mass of 0.067, 0.073, and 0.077me are obtained for n-type GaAs with 7.22×1017, 8.75×1017, and 14.0×1017 carriers per cm3.</p>
dc.description.comments <p>This article is from <em>Physical Review</em> 177 (1969): 1231, doi:<a href="http://dx.doi.org/10.1103/PhysRev.177.1231" target="_blank">10.1103/PhysRev.177.1231</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/physastro_pubs/12/
dc.identifier.articleid 1016
dc.identifier.contextkey 6531007
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/12
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/56858
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/physastro_pubs/12/1969_Lynch_LongitudinalOptical.pdf|||Fri Jan 14 19:04:44 UTC 2022
dc.source.uri 10.1103/PhysRev.177.1231
dc.subject.disciplines Atomic, Molecular and Optical Physics
dc.subject.disciplines Physics
dc.subject.disciplines Plasma and Beam Physics
dc.subject.keywords excitations
dc.subject.keywords reflectivity spectra
dc.subject.keywords Ames Laboratory
dc.title Longitudinal-Optical-Phonon-Plasmon Coupling in GaAs
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication fa3aaf34-6c45-4f1c-9296-edcfc98e117b
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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