Flux-line tilt moduli in anisotropic superconductors
- 1 April 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (13), 1781-1784
- https://doi.org/10.1103/physrevlett.66.1781
Abstract
A general expression for the elastic energy of the flux-line lattice (FLL) in anisotropic superconductors is given. From this we derive three tilt moduli (k) for the FLL in uniaxial superconductors with induction B∥ and ⊥ to the basal plane. The discreteness of the FLL leads to a logarithmically dispersive isolated-vortex term, which at B≪ in a large part of the Brillouin-zone area exceeds the usual Lorentzian-dispersive (k) originating from the overlapping vortex fields. The difference between vortex self-energy, line tension, and tilt modulus in an anisotropic superconductor is discussed.
Keywords
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