Two-step liquid-solid vortex transition with the field along the ab planes in YBa2Cu3O7δ crystals

S. A. Grigera, E. Morré, E. Osquiguil, G. Nieva, and F. de la Cruz
Phys. Rev. B 59, 11201 – Published 1 May 1999
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Abstract

Resistivity measurements for different Lorentz force configurations and the detection of the longitudinal vortex velocity correlation length, with the magnetic field applied parallel to the ab planes, in the mixed state of clean and twinned YBa2Cu3O7δ single crystals, support the existence of a vortex-smectic phase when the vortices interact with an attractive periodic potential. The transition from the vortex-liquid to the vortex-solid state is shown to be achieved in two steps, a continuous transition from a liquid to a possible smectic phase and another continuous one from the smectic phase to a solid.

  • Received 29 July 1998

DOI:https://doi.org/10.1103/PhysRevB.59.11201

©1999 American Physical Society

Authors & Affiliations

S. A. Grigera, E. Morré*, E. Osquiguil, G. Nieva, and F. de la Cruz

  • Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 San Carlos de Bariloche, Argentina

  • *Present address: Max-Planck-Institute für Chemische-Physik Fester Stoffe, Dresden, Germany.

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Vol. 59, Iss. 17 — 1 May 1999

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