Spin Injection into a Graphene Thin Film at Room Temperature

Details Spin Injection into a Graphene Thin Film at Room Temperature Spin Injection into a Graphene Thin Film at Room Temperature

2007-06-11

arxiv.org/abs/0706.1451v1

Japanese Journal of Applied Physics 46, L605-L607(Express Letters) (2007).

Physics

Condensed Matter

Materials Science

12 pages, 3 figures

Scientific paper

10.1143/JJAP.46.L605

We demonstrate spin injection into a graphene thin film with high reliability by using non-local magnetoresistance (MR) measurements, in which the electric current path is completely separated from the spin current path. Using these non-local measurements, an obvious MR effect was observed at room temperature; and the MR effect was ascribed to magnetization reversal of ferromagnetic electrodes. This result is a direct demonstration of spin injection into a graphene thin film. Furthermore, this is the first report of spin injection into molecules at room temperature.

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