Pure spin current in graphene normal-superconductor structures
D. Greenbaum, S. Das, G. Schwiete, P. G. Silvestrov
DOI 10.1103/PhysRevB.75.195437 · Physical Review B
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Abstract
We demonstrate theoretically the possibility of producing 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 junctions.
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