Publikation: Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene
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2012
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Diez, Mathias
Burkard, Guido
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Physical Review B. 2012, 85(19). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.85.195412
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We calculate the spin relaxation time of mobile electrons due to spin precession between random impurity scattering (D’yakonov-Perel’ mechanism) in electrically gated bilayer graphene analytically and numerically. Due to the trigonal warping of the band structure, the spin relaxation time exhibits an interesting nonmonotonic behavior as a function of both the Fermi energy and the interlayer bias potential. Our results are in good agreement with recent four-probe measurements of the spin relaxation time in bilayer graphene and indicate the possibility of an electrically switched spin device.
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DIEZ, Mathias, Guido BURKARD, 2012. Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene. In: Physical Review B. 2012, 85(19). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.85.195412BibTex
@article{Diez2012Biasd-22724,
year={2012},
doi={10.1103/PhysRevB.85.195412},
title={Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene},
number={19},
volume={85},
issn={1098-0121},
journal={Physical Review B},
author={Diez, Mathias and Burkard, Guido}
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<dcterms:abstract xml:lang="eng">We calculate the spin relaxation time of mobile electrons due to spin precession between random impurity scattering (D’yakonov-Perel’ mechanism) in electrically gated bilayer graphene analytically and numerically. Due to the trigonal warping of the band structure, the spin relaxation time exhibits an interesting nonmonotonic behavior as a function of both the Fermi energy and the interlayer bias potential. Our results are in good agreement with recent four-probe measurements of the spin relaxation time in bilayer graphene and indicate the possibility of an electrically switched spin device.</dcterms:abstract>
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