TY - JOUR
T1 - The role of intermediate layers in the c axis conductivity of layered superconductors
AU - Atkinson, W. A.
AU - Wu, W. C.
AU - Carbotte, J. P.
N1 - Funding Information:
This work was supported by the Natural Sciences and Engineering Research Council, and the Canadian Institute for Advanced Research. One of the authors (WA) was supported in part by the Midwest Superconductivity Consortium through D.O.E. grant # DE-FG-02-90ER45427.
PY - 1998
Y1 - 1998
N2 - A simplified model of c axis transport in the high Tc superconductors is presented. Expressions are found for the c axis optical conductivity, the d.c. resistivity, and the c axis penetration depth. Within the framework of this model, the pseudogap in the optical conductivity arises naturally as a result of the layered band structure of the high Tc materials. We discuss the occurrence of the pseudogap in terms of three parameters: a bandgap Δps, a temperature dependent scattering rate Γ(T), and the strength of the interlayer coupling t⊥. We are also able to find analytic expressions for the d.c. conductivity and the low temperature penetration depth in terms of these three parameters. This work is an attempt to present a simple, unified picture of c axis properties in the high Tc cuprates.
AB - A simplified model of c axis transport in the high Tc superconductors is presented. Expressions are found for the c axis optical conductivity, the d.c. resistivity, and the c axis penetration depth. Within the framework of this model, the pseudogap in the optical conductivity arises naturally as a result of the layered band structure of the high Tc materials. We discuss the occurrence of the pseudogap in terms of three parameters: a bandgap Δps, a temperature dependent scattering rate Γ(T), and the strength of the interlayer coupling t⊥. We are also able to find analytic expressions for the d.c. conductivity and the low temperature penetration depth in terms of these three parameters. This work is an attempt to present a simple, unified picture of c axis properties in the high Tc cuprates.
KW - Anisotropic conductivity
KW - High temperature superconductivity
KW - Pseudogap
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U2 - 10.1016/S0022-3697(98)00102-4
DO - 10.1016/S0022-3697(98)00102-4
M3 - Article
AN - SCOPUS:0032179970
SN - 0022-3697
VL - 59
SP - 1791
EP - 1793
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 10-12
ER -