Josephson spin current in triplet superconductor junctions

[摘要] This paper theoretically discusses the spin current in spin-triplet superconductor/insulator/spin-triplet superconductor junctions. At low temperatures, a midgap Andreev resonant state anomalously enhances not only the charge current but also the spin current. The coupling between the Cooper pairs and the electromagnetic fields leads to a Fraunhofer pattern in the direct current spin flow in magnetic fields and an alternative spin current under applied bias voltages.

[发布日期] 2006-12-01

[关键词] D-WAVE SUPERCONDUCTORS;TEMPERATURE