Electron transport in a ferromagnet-superconductor junction on graphene

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Asano, Yasuhiro and Yoshida, Toshihiro and Tanaka, Yukio and Golubov, Alexander A. (2008) Electron transport in a ferromagnet-superconductor junction on graphene. Physical Review B: Condensed matter and materials physics, 78 (1). 014514. ISSN 1098-0121

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Abstract:In a usual ferromagnet connected with a superconductor, the exchange potential suppresses the superconducting pairing correlation. We show that this common knowledge does not hold in a ferromagnetsuperconductor junction on a graphene. When the chemical potential of a graphene is close to the conical point of energy dispersion, the exchange potential rather assists the charge transport through a junction interface. The loose-bottomed electric structure causes this unusual effect
Item Type:Article
Copyright:© 2008 American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/59240
Official URL:http://dx.doi.org/10.1103/PhysRevB.78.014514
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Metis ID: 252475