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Broken time-reversal symmetry in Josephson junction involving two-band superconductors

Authors Ng, T.K.
Nagaosa, N.
Issue Date 2009
Source Europhysics letters , v. 87, (1), 2009, Jul, article number 17003
Summary A novel time-reversal symmetry breaking state is found theoretically in the Josephson junction between a two-gap superconductor and a conventional s-wave superconductor. This occurs as a result of frustration between the three order parameters analogous to two antiferromagnetically coupled XY-spins put under a magnetic field. This leads to formation of interface states with energies inside the superconducting gap and modified flux quantization condition for a ring composed of the two types of superconductors. Copyright © 2009 EPLA.
ISSN 0295-5075
Rights Europhysics letters © copyright (2009) IOP Publishing Ltd. The Journal's web site is located at
Language English
Format Article
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