Fractional-flux vortices and spin superfluidity in triplet superconductors

Abstract

We discuss a novel type of fractional flux vortices along with integer flux vortices in Kosterlitz-Thouless transitions in a triplet superconductor. We show that under certain conditions a spin-triplet superconductor should exhibit a novel state of {\it spin superfluidity} without superconductivity.

arXiv commentPhysical Review Lettes, in print. v2: references added, v3: discussion of several points extended according to referee request. Latest updates and links to related papers are available at my homepage http://people.ccmr.cornell.edu/~egor/

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Cited by in corpus (16)

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• Vortex matter in mesoscopic two-gap superconducting disks: influence of Josephson and magnetic coupling
• Field- and temperature induced topological phase transitions in the three-dimensional $N$-component London superconductor
• Magnetic field delocalization and flux inversion in fractional vortices in two-component superconductors
• Skyrmionic state and stable half-quantum vortices in chiral p-wave superconductors
• Preemptive vortex-loop proliferation in multicomponent interacting Bose--Einstein condensates
• Fractional vortex lattice structures in spin triplet superconductors
• Superfluidity of pure spin current in ultracold Bose gases
• Berezinskii-Kosterlitz-Thouless transition of spin-1 spinor Bose gases in the presence of the quadratic Zeeman effect
• Superfluidity of Bose-Einstein condensates in ultracold atomic gases
• Entropy driven formation of a half-quantum vortex lattice
• Finite-temperature phase transitions in quasi-two-dimensional spin-1 Bose gases
• Topologically enabled superconductivity
• Berezinskii-Kosterlitz-Thouless transition transport in spin-triplet superconductor
• Integer and fractionalized vortex lattices and off-diagonal long-range order
• Magnetic structures and Z_2 vortices in a non-Abelian gauge model