Electric dipole spin resonance in systems with a valley dependent g-factor


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RANČIĆ, Marko J., Guido BURKARD, 2016. Electric dipole spin resonance in systems with a valley dependent g-factor. In: Physical Review B. 93(20), 205433. ISSN 2469-9950. eISSN 2469-9969

@article{Rancic2016Elect-34901, title={Electric dipole spin resonance in systems with a valley dependent g-factor}, year={2016}, doi={10.1103/PhysRevB.93.205433}, number={20}, volume={93}, issn={2469-9950}, journal={Physical Review B}, author={Rančić, Marko J. and Burkard, Guido}, note={9 pages, 9 figures Article Number: 205433} }

<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/123456789/34901"> <dc:creator>Burkard, Guido</dc:creator> <dcterms:abstract xml:lang="eng">In this theoretical study we qualitatively and quantitatively investigate the electric dipole spin resonance (EDSR) in a single Si/SiGe quantum dot in the presence of a magnetic field gradient, e.g., produced by a ferromagnet. We model a situation in which the control of electron spin states is achieved by applying an oscillatory electric field, inducing real-space oscillations of the electron inside the quantum dot. One of the goals of our study is to present a microscopic theory of valley dependent $g$-factors in Si/SiGe quantum dots and investigate how valley relaxation combined with a valley dependent $g$-factor leads to a novel electron spin dephasing mechanism. Furthermore, we discuss the interplay of spin and valley relaxations in Si/SiGe quantum dots. Our findings suggest that the electron spin dephases due to valley relaxation, and are in agreement with recent experimental studies [Nature Nanotechnology 9, 666-670 (2014)].</dcterms:abstract> <dc:contributor>Burkard, Guido</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-07-28T12:41:00Z</dcterms:available> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-07-28T12:41:00Z</dc:date> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/34901"/> <dc:contributor>Rančić, Marko J.</dc:contributor> <dcterms:title>Electric dipole spin resonance in systems with a valley dependent g-factor</dcterms:title> <dc:creator>Rančić, Marko J.</dc:creator> <dcterms:issued>2016</dcterms:issued> </rdf:Description> </rdf:RDF>

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