First order phase transition from the vortex liquid to an amorphous solid

Abstract

We present a systematic study of the topology of the vortex solid phase in superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ samples with low doses of columnar defects. A new state of vortex matter imposed by the presence of geometrical contours associated with the random distribution of columns is found. The results show that the first order liquid-solid transition in this vortex matter does not require a structural symmetry change.

4 pages, 5 figures

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• A Bragg glass phase in the vortex lattice of a type II superconductor
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• Melting of 'porous' vortex matter
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Cited by in corpus (29)

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