Anomalous Josephson Effect in p-Wave Dirty Junctions
Abstract
The Josephson effect in p-wave superconductor/diffusive normal metal/p-wave superconductor junctions is studied theoretically. Amplitudes of Josephson currents are several orders of magnitude larger than those in s-wave junctions. Current-phase (J-φ) relations in low temperatures are close to those in ballistic junctions such as Jαsin(φ/2) and J αφ even in the presence of random impurity potentials. A cooperative effect between the midgap Andreev resonant states and the proximity effect causes such anomalous properties and is a character of the spin-triplet superconductor junctions.
Journal
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- Physical Review Letters
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Physical Review Letters 96 097007-, 2006-03-10
American Physical Society