Percolation transition of the vortex lattice and c-axis resistivity in high-temperature superconductors

Details Percolation transition of the vortex lattice and c-axis resistivity in high-temperature superconductors Percolation transition of the vortex lattice and c-axis resistivity in high-temperature superconductors

1995-07-03

arxiv.org/abs/supr-con/9507001v1

Physics

Condensed Matter

Superconductivity

7 pages, 3 figures, sent to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevB.53.R538

We use the three-dimensional Josephson junction array system as a model for studying the temperature dependence of the c-axis resistivity of high temperature superconductors, in the presence of an external magnetic field H applied in the c-direction. We show that the temperature at which the dissipation becomes different from zero corresponds to a percolation transition of the vortex lattice. In addition, the qualitative features of the resistivity vs. temperature curves close to the transition are obtained starting from the geometrical configurations of the vortices. The results apply to the cases H greater than 0 and H=0.

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