A spin beam splitter in graphene through the GoosHänchen shift
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Original language | English |
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Article number | 212408 |
Journal / Publication | Applied Physics Letters |
Volume | 105 |
Issue number | 21 |
Publication status | Published - 24 Nov 2014 |
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84912544439&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(05a3eb6d-2cc8-4e5b-ae71-5f992894b887).html |
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.
In: Applied Physics Letters, Vol. 105, No. 21, 212408, 24.11.2014.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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