Phys. Rev. Lett. 83, 3864–3867 (1999)π States in Josephson Junctions between 3He-BReceived 7 June 1999; published in the issue dated 8 November 1999 We investigate the dependence of the current-phase relationship on the orientation of the order parameter for a pinhole between two 3He-B reservoirs. We show that, due to the internal spin structure of the superfluid, the energy of the junction may have a relative minimum at phase difference equal to π at low temperatures. The dependence of the supercurrent on the direction of an applied magnetic field can be used to verify the present mechanism for the “ π states.” © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3864
DOI:
10.1103/PhysRevLett.83.3864
PACS:
67.57.-z
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