Flux-line tilt moduli in anisotropic superconductors

Journal Article · Mon Apr 01 00:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.1781· OSTI ID:5794825

Sudbo, A; Brandt, E H ^[1]

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1. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (US)

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 {ital c}{sub 44}({bold k}) for the FLL in uniaxial superconductors with induction {ital B}{parallel} and {perpendicular} to the basal plane. The discreteness of the FLL leads to a logarithmically dispersive isolated-vortex term, which at {ital B}{much lt}{ital B}{sub {ital c}2} in a large part of the Brillouin-zone area exceeds the usual Lorentzian-dispersive {ital c}{sub 44}({bold k}) originating from the overlapping vortex fields. The difference between vortex self-energy, line tension, and tilt modulus in an anisotropic superconductor is discussed.

• OSTI ID: 5794825
• Journal Information: Physical Review Letters; (USA), Vol. 66:13; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTORS
MAGNETIC FLUX
ANISOTROPY
CORRECTIONS
ELASTICITY
EQUATIONS
EQUILIBRIUM
FREE ENERGY
INTERACTION RANGE
ISOTROPY
LONDON EQUATION
SELF-ENERGY
DISTANCE
ENERGY
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
TENSILE PROPERTIES
THERMODYNAMIC PROPERTIES
656100* - Condensed Matter Physics- Superconductivity