Aspect on vortex structure in noncentrosymmetric superconductors |
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Authors: | Tao Xu |
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Institution: | College of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China |
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Abstract: | Helicity of vortices is studied in a single order parameter Ginzburg-Landau model with n × B term. This unusual term changes the superconductor current, but does not change the quantum of magnetic flux, and the cross helicity of the probability density current in noncentrosymmetric superconductors. In this paper I compute the kinetic helicity and magnetic helicity of a superconductor and introduce a new helicity, i.e. a new topological invariant, to describe vortex phase. |
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Keywords: | Ginzburg-Landau model Vortices Helicity |
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