Possible Evidence for A Slush Vortex Phase in the Vicinity of Vortex Glass Transition in YBa$_{2}$Cu$_3$O$_{7-δ}$ Thin Films

H. H. Wen; S. L. Li; G. H. Chen; X. S. Ling

doi:10.1103/PhysRevB.64.054507

paper

Possible Evidence for A Slush Vortex Phase in the Vicinity of Vortex Glass Transition in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ Thin Films

arXiv:cond-mat/0101111 · doi:10.1103/PhysRevB.64.054507

Abstract

Current-voltage $I - V$ curves have been carefully measured for YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ thin films by following different thermal or field annealing procedures. Although all data can be described quite well by the vortex-glass theory, it is found that the dissipation in a small region just above the vortex-glass transition is history dependent: the dissipation in the warming up or field-increasing process is larger than that in the cooling down or field-decreasing process. We attribute this history dependent dissipation to possible existence of a slush vortex phase.

4 pages, 5 figures, submitted to PRL

Possible Evidence for A Slush Vortex Phase in the Vicinity of Vortex Glass Transition in YBa2​Cu3​O7−δ​ Thin Films

Abstract

Possible Evidence for A Slush Vortex Phase in the Vicinity of Vortex Glass Transition in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ Thin Films