Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene
Mesoscale and Nanoscale Physics
2012-09-11 v1
Abstract
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 bandstructure, the spin relaxation time exhibits an interesting non-monotonic 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.
Keywords
Cite
@article{arxiv.1202.2067,
title = {Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene},
author = {Mathias Diez and Guido Burkard},
journal= {arXiv preprint arXiv:1202.2067},
year = {2012}
}
Comments
9 pages, 3 figures, 1 table