Vortex entanglement in high-Tc superconductors
Abstract
New kinds of intermediate flux states should be accessible in high-Tc superconductors, in fields slightly above Hc1. Flux-line wandering leads to an entangled vortex state whose statistical mechanics is isomorphic to an interacting 2D Bose superfluid with cooperative ring exchanges. In sufficiently thin samples, this ``braided flux'' phase transforms into a liquid of disentangled rods.
- Publication:
-
Physical Review Letters
- Pub Date:
- May 1988
- DOI:
- 10.1103/PhysRevLett.60.1973
- Bibcode:
- 1988PhRvL..60.1973N
- Keywords:
-
- Copper Oxides;
- Fluctuation Theory;
- Flux Pinning;
- High Temperature Superconductors;
- Statistical Mechanics;
- Bosons;
- Collision Parameters;
- Liquid Phases;
- Mixed Oxides;
- Vortices;
- Solid-State Physics;
- 75.10.Jm;
- 67.40.Db;
- 75.50.Ee;
- Quantized spin models;
- Quantum statistical theory;
- ground state elementary excitations;
- Antiferromagnetics