Pure spin current in graphene NS structures
arXiv:cond-mat/0610750 · doi:10.1103/PhysRevB.75.195437
Abstract
We demonstrate theoretically the possibility to produce a pure spin current in graphene by filtering the charge from a spin-polarized electric current. To achieve this effect, which is based on the recently predicted property of specular Andreev reflection in graphene, we propose two possible device structures containing normal-superconductor (NS) junctions.
5 pages, 3 figures