Nonuniform states in noncentrosymmetric superconductors

Abstract

In noncentrosymmetric crystals, nonuniform superconducting states are possible even in the absence of any external magnetic field. The origin of these states can be traced to the Lifshitz invariants in the free energy, which are linear in spatial gradients. We show how various types of the Lifshitz invariants in noncentrosymmetric superconductors can be derived from microscopic theory.

7 pages

References in corpus (8)

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• Superconductivty without inversion symmetry: MnSi versus CePt_3Si
• CePt3Si: an unconventional superconductor without inversion center
• Inhomogeneous LOFF phase revisited for surface superconductivity
• Magnetic properties of superconductors with strong spin-orbit coupling
• Gap structure in noncentrosymmetric superconductors
• Cooper Pairs with Broken Parity and Time-Reversal Symmetries in D-wave Superconductors
• Nonuniform mixed-parity superfluid state in Fermi gases

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