Phys. Rev. Lett. 83, 3864 - 3867 (1999)π States in Josephson Junctions between 3He-B |
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S.-K. Yip
Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu, Taiwan 300, Republic of China
Received 7 June 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/abstract/PRL/v83/p3864
DOI: 10.1103/PhysRevLett.83.3864
PACS: 67.57.-z
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