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Unusual states of inhomogeneous dx2−y2+idxy superconductors

M. I. Salkola, J. R. Schrieffer

DOI 10.1103/PhysRevB.58.R5952 · Physical Review B

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Abstract

Superconductors whose order parameter violates time-reversal symmetry and parity have unusual properties that set them apart from conventional superconductors. In particular, if translation symmetry is also broken, the superconducting state generates spontaneously a current and a magnetic field. These phenomena are studied using a dx2−y2+idxy superconductor as a prototype. Some of the most striking consequences of the symmetry breaking are examined at boundaries and in the presence of pointlike impurities and quasiparticles.

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