Transport properties of a three-dimensional array of Josephson junctions in a magnetic field

E. A. Jagla; C. A. Balseiro

doi:10.1103/PhysRevB.52.4494

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Transport properties of a three-dimensional array of Josephson junctions in a magnetic field

E. A. Jagla, C. A. Balseiro

DOI 10.1103/PhysRevB.52.4494 · Physical Review B

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Abstract

We calculate numerically the behavior of a model high-temperaure superconductor described by a three-dimensional array of Josephson junctions in the presence of an external magnetic field using dynamical Langevin simulations in the extreme type-II case. In particular, the voltage generated when an external current is applied, and its dependence on the external field and thickness of the sample are discussed. We find that the ab-plane resistivity is well described by a thermal activation model, whereas the c-axis resistivity appears for higher temperatures. To make connection with recent experiments, the response to nonhomogeneous applied currents is also discussed.