Renormalization-group study of a layered-superconductor model

Stephen W. Pierson; Oriol T. Valls

doi:10.1103/PhysRevB.45.13076

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Renormalization-group study of a layered-superconductor model

Stephen W. Pierson, Oriol T. Valls

DOI 10.1103/PhysRevB.45.13076 · Physical Review B

T1

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Abstract

We have performed a renormalization-group analysis of a system of Kosterlitz-Thouless-Berezinskii (KTB) layers coupled to each other by a Lawrence-Doniach-type term, in zero field. We derive the recursion relations for the case where the interlayer coupling λ is weak. We find that λ is relevant and study the crossover away from KTB behavior. We have calculated the shift in the critical temperature and the size of the narrow three-dimensional critical region.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Tl2Ba2CaCu2O8 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
YBa2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown