8 research outputs found
Spin rotator and shot noise in graphene-based multi-barrier nanostructure
Based on the transfer-matrix method, the spin transport properties through a
graphene-based multi-barrier nanostructure with an exchange field and Rashba spin orbit
coupling (SOC), have been investigated. It is found that if Rashba SOC equals to the
exchange field, the multi-barrier nanostructure is an efficient way to achieve spin
rotators and spin filters. In addition, it is also found that the shot noise of a spin
state can be enhanced by electrostatic potential, and plateaus of the Fano factor is
formed