Deformable superconductor model for the fluxon mass

Mark W. Coffey

doi:10.1103/PhysRevB.49.9774

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Deformable superconductor model for the fluxon mass

Mark W. Coffey

DOI 10.1103/PhysRevB.49.9774 · Physical Review B

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Abstract

Outstanding difficulties in a deformable type-II superconductor model for the fluxon inertial mass per unit length μd are resolved. An identity for the inertial mass, valid for an arbitrary quasiparticle fraction when the ionic displacement field is irrotational, plays a critical role in the analysis. This approach avoids previously employed approximations, leading to qualitatively different results, including a fluxon mass which properly vanishes at the transition temperature and which has a greatly reduced magnitude. A framework for the solution of the elasticity equation for an isotropic superconductor is presented and the close relation between μd and the ionic strain field is shown.