Direct observation of the flux-line vortex glass phase in a type II superconductor.
/ Authors
U. Divakar, Alan J. Drew, Stephen Lee, R. Gilardi, J. Mésot, F. Ogrin, D. Charalambous, E. Forgan, G. I. Menon, N. Momono
and 3 more authors
/ Abstract
The order of the vortex state in La1.9Sr0.1CuO4 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.
Journal: Physical review letters