Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene

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.

9 pages, 3 figures, 1 table

References in corpus (4)

• The electronic properties of graphene
• Spin qubits in graphene quantum dots
• Graphene Spin Transistor
• Spin-orbit coupling in a graphene bilayer and in graphite

Cited by in corpus (3)

• Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
• Energy spectrum and Landau levels in bilayer graphene with spin-orbit interaction
• Intrinsic and substrate induced spin-orbit interaction in chirally stacked trilayer graphene