Supercurrent Switch in GrapheneπJunctions

作者: Jacob Linder , Takehito Yokoyama , Daniel Huertas-Hernando , Asle Sudbø

DOI: 10.1103/PHYSREVLETT.100.187004

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摘要: We study the supercurrent in a superconductor/ferromagnet/superconductor graphene junction. In contrast to its metallic counterpart, oscillating critical current our setup decays only weakly upon increasing exchange field and junction width. find an unusually large residual value of at oscillatory cusps due strong deviation from sinusoidal current-phase relationship. Our findings suggest very efficient device for dissipationless switching.

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