Universal scaling behavior of the c-axis resistivity of high-temperature superconductors

Y. H. Su; H. G. Luo; T. Xiang

doi:10.1103/PhysRevB.73.134510

paper

Universal scaling behavior of the c-axis resistivity of high-temperature superconductors

arXiv:cond-mat/0505480 · doi:10.1103/PhysRevB.73.134510

Abstract

We propose and show that the c-axis transport in high-temperature superconductors is controlled by the pseudogap energy and the c-axis resistivity satisfies a universal scaling law in the pseudogap phase. We derived approximately a scaling function for the c-axis resistivity and found that it fits well with the experimental data of Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O $_{8 + δ}$ , Bi $_{2}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10 + δ}$ , and YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ . Our works reveals the physical origin of the semiconductor-like behavior of the c-axis resistivity and suggests that the c-axis hopping is predominantly coherent.

6 pages, 1 figure and 5 tables are added, title and abstract are changed