Orientational order in disordered superconductors
- 13 May 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (19) , 2523-2526
- https://doi.org/10.1103/physrevlett.66.2523
Abstract
Orientational order in weakly pinned Abrikosov flux lattices is studied, taking into account two heretofore neglected effects: dislocations and orientational couplings to the underlying lattice. Without orientational couplings, arbitrarily weak pinning destroys long-ranged orientational order for all spatial dimensions dfourfold symmetry, sixfold (hexatic) orientational order is described by a random-field Ising model, and so does not occur in d=2 (thin films) but does in d=3 (bulk).Keywords
This publication has 27 references indexed in Scilit:
- Orientational and positional order in flux lattices of type-II superconductorsPhysical Review B, 1991
- Pinning by oxygen vacancies in high-superconductorsPhysical Review Letters, 1990
- Dislocation loops and bond-orientational order in the Abrikosov flux-line latticePhysical Review B, 1990
- Flux lattice melting in high-superconductorsPhysical Review B, 1989
- Thermal fluctuation and melting of the vortex lattice in oxide superconductorsPhysical Review Letters, 1989
- Theory of melted flux liquidsPhysical Review B, 1989
- Anisotropic vortex structure inPhysical Review Letters, 1989
- Vortex-glass superconductivity: A possible new phase in bulk high-oxidesPhysical Review Letters, 1989
- Evidence from Mechanical Measurements for Flux-Lattice Melting in Single-Crystal Y andPhysical Review Letters, 1988
- Vortex Entanglement in High-SuperconductorsPhysical Review Letters, 1988