arxiv: cond-mat/0611608 · v1 · submitted 2006-11-23 · ❄️ cond-mat.supr-con

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

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G.I. Menon N. Momono M. Oda C.D. Dewhurst C. Baines

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keywords vortexglasstransitionbehaviorbraggcomposeddelicatedirect

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

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