Bose-Glass Phase in Twinned YBa2Cu3O7−δ
S. A. Grigera, E. Morré, E. J. Osquiguil +3 more
Using an extensive scaling analysis of the transport properties in twinned ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ 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 ${s}^{\ensuremath{'}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.1\ifmmode\pm\else\textpm\fi{}0.3$.
arXiv:cond-mat/9806376•Physical Review Letters•Sep 14, 1998•100 citations