Direct observation of the flux-line vortex glass phase in a type II superconductor

Divakar, U.; Drew, A. J.; Lee, S. L.; Gilardi, R.; Mesot, J.; Ogrin, F. Y.; Charalambous, D.; Forgan, E. M.; Menon, G. I.; Momono, N.; Oda, M.; Dewhurst, C. D.; Baines, C.

Direct observation of the flux-line vortex glass phase in a type II superconductor

Authors

Description

The order of the vortex state in La_{1.9} Sr_{0.1} CuO_{4} is probed using muon spin rotation and small-angle neutron scattering. A transition from a Bragg glass to a vortex glass is observed, where the latter is composed of disordered vortex lines. In the vicinity of the transition the microscopic behavior reflects a delicate interplay of thermally-induced and pinning-induced disorder.
14 pages, 4 colour figures included