A spin beam splitter in graphene through the GoosHänchen shift

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Original languageEnglish
Article number212408
Journal / PublicationApplied Physics Letters
Volume105
Issue number21
Publication statusPublished - 24 Nov 2014

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Abstract

We propose a method of realizing an effective electron spin beam splitter in graphene through the Goos-Hänchen effect. The device consists of a layer of monolayer graphene on which two ferromagnetic stripes are deposited with parallel or antiparallel magnetization configuration. It is shown that the transmitted spin-up and spin-down electron beams are found at different longitudinal positions and their spatial separation can be enhanced by the number of transmission resonances formed between the two ferromagnetic stripes. The spatial separation between the spin-up and spin-down electron beams can reach values up to hundreds of wavelengths, which can be observed experimentally.

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A spin beam splitter in graphene through the GoosHänchen shift. / Zhang, Qingtian; Chan, K. S.
In: Applied Physics Letters, Vol. 105, No. 21, 212408, 24.11.2014.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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