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The Bose-glass phase in twinned YBaCuO(123)

S. A. Grigera, E. Morre, E. Osquiguil, C. Balseiro, G. Nieva, F. de la Cruz

cond-mat.supr-conarXiv:cond-mat/9806376

Abstract

Using an extensive scaling analysis of the transport properties in twinned YBaCuO(123) crystals we have experimentally found the predicted change in the universality class of the Bose-glass to liquid transition when the magnetic field is applied at small angles away from the direction of the correlated defects. The new dynamical critical exponent is s'=1.1 +/-0.2.

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