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

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

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.

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U. Divakar, A. J. Drew, S. L. Lee, R. Gilardi, J. Mesot, F. Y. Ogrin, D. Charalambous, E. M. Forgan, G. I. Menon, N. Momono, M. Oda, C. D. Dewhurst, C. Baines. 2006-11-23. Direct observation of the flux-line vortex glass phase in a type II superconductor. https://doi.org/10.1103/physrevlett.92.237004

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