Supercurrent through Hybrid Junctions with Anisotropic Cooper-Pair Condensates

Munehiro Nishida; Noriyuki Hatakenaka; Susumu Kurihara

doi:10.1103/PhysRevLett.88.145302

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Supercurrent through Hybrid Junctions with Anisotropic Cooper-Pair Condensates

Munehiro Nishida, Noriyuki Hatakenaka, Susumu Kurihara

DOI 10.1103/PhysRevLett.88.145302 · Physical Review Letters

T1

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Abstract

A general formula for the supercurrent between different internal structures in a wide class of hybrid junctions is derived on the basis of the Andreev-reflection picture. The formula extends existing formulas and also enables us to analyze novel B−phase/A−phase/B−phase junctions in superfluid 3He systems. We propose a mechanism for π states due to the l̂ texture in the A phase of the junction, which could elucidate major features of the π states with higher critical current ( H states) discovered in superfluid 3He weak links. The bistability of the π states is also discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown