Temperature dependence of the electron spin g factor in GaAs


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ZAWADZKI, Wlodzimierz, Pawel PFEFFER, Rudolf BRATSCHITSCH, Zilong CHEN, Steven T. CUNDIFF, Benedict N. MURDIN, Carl R. PIDGEON, 2008. Temperature dependence of the electron spin g factor in GaAs. In: Physical Review B. 78, 245203

@article{Zawadzki2008Tempe-881, title={Temperature dependence of the electron spin g factor in GaAs}, year={2008}, doi={10.1103/PhysRevB.78.245203}, volume={78}, journal={Physical Review B}, author={Zawadzki, Wlodzimierz and Pfeffer, Pawel and Bratschitsch, Rudolf and Chen, Zilong and Cundiff, Steven T. and Murdin, Benedict N. and Pidgeon, Carl R.}, note={Article Number: 245203} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/881"> <dcterms:bibliographicCitation>Publ. in: Physical Review B 78 (2008), 245203</dcterms:bibliographicCitation> <dc:contributor>Pidgeon, Carl R.</dc:contributor> <dc:contributor>Pfeffer, Pawel</dc:contributor> <dc:creator>Murdin, Benedict N.</dc:creator> <dcterms:title>Temperature dependence of the electron spin g factor in GaAs</dcterms:title> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:51:42Z</dc:date> <dc:creator>Cundiff, Steven T.</dc:creator> <dcterms:abstract xml:lang="eng">The temperature dependence of the electron spin g factor in GaAs is investigated experimentally and theoretically. Experimentally, the g factor was measured using time-resolved Faraday rotation due to Larmor precession of electron spins in the temperature range between 4.5 and 190 K. The experiment shows an almost linear increase in the g value with the temperature. This result is in good agreement with other measurements based on photoluminescence quantum beats and time-resolved Kerr rotation up to room temperature. The experimental data are described theoretically taking into account a diminishing fundamental energy gap in GaAs due to lattice thermal dilatation and nonparabolicity of the conduction band calculated using a five-level k center dot p model. According to the model, the g factor increases when the electron energy increases in the band with the growing Landau level n and the wave vector k(z). At higher temperatures electrons populate higher Landau levels and the average g factor is obtained from a summation over many levels and an integration over k(z). A very good description of the experimental data is obtained indicating that the observed increase in the spin g factor with the temperature is predominantly due to band's nonparabolicity.</dcterms:abstract> <dc:creator>Zawadzki, Wlodzimierz</dc:creator> <dc:creator>Chen, Zilong</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:51:42Z</dcterms:available> <dc:creator>Bratschitsch, Rudolf</dc:creator> <dc:contributor>Bratschitsch, Rudolf</dc:contributor> <dc:contributor>Murdin, Benedict N.</dc:contributor> <dc:contributor>Zawadzki, Wlodzimierz</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/881"/> <dc:creator>Pfeffer, Pawel</dc:creator> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dc:rights>deposit-license</dc:rights> <dc:creator>Pidgeon, Carl R.</dc:creator> <dc:contributor>Cundiff, Steven T.</dc:contributor> <dc:language>eng</dc:language> <dc:contributor>Chen, Zilong</dc:contributor> <dcterms:issued>2008</dcterms:issued> </rdf:Description> </rdf:RDF>

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