Anomalous Josephson effect in p-wave dirty junctions |
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Authors: | Asano Yasuhiro Tanaka Yukio Kashiwaya Satoshi |
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Institution: | Department of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan. |
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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-phi) relations in low temperatures are close to those in ballistic junctions such as J proportional to sin(phi/2) and J proportional to phi 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. |
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