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

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

2005-05-19

arxiv.org/abs/cond-mat/0505480v2

Phys. Rev. B 73, 134510 (2006)

Physics

Condensed Matter

Superconductivity

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

Scientific paper

10.1103/PhysRevB.73.134510

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$_{8+\delta}$, Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta}$, and YBa$_2$Cu$_3$O$_{7-\delta}$. 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.

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