c-axis Conductivity in the Normal State of Cuprate Superconductors

P. Prelovšek; A. Ramšak; I. Sega

doi:10.1103/PhysRevLett.81.3745

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c-axis Conductivity in the Normal State of Cuprate Superconductors

P. Prelovšek, A. Ramšak, I. Sega

DOI 10.1103/PhysRevLett.81.3745 · Physical Review Letters

T1

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Abstract

The c-axis optical conductivity and dc resistivity are calculated within the t- J model assuming that the interlayer hopping is incoherent. Use is made of numerical results for spectral functions recently obtained with the finite-temperature Lanczos method for finite two-dimensional systems. In the optimally doped regime we find an anomalous relaxation rate τc−1∝ω+ξcT and ρc(T)∝ρab(T), suggesting a common relaxation mechanism for intra- and interlayer transport. At low doping a pseudogap opening in the density of states appears to be responsible for a semimetalliclike behavior of ρc(T).

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown