Phase boundary of superconducting networks: A new approximation scheme

C. C. Chi; P. Santhanam; P. E. Blöchl

doi:10.1103/PhysRevB.42.76

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Phase boundary of superconducting networks: A new approximation scheme

C. C. Chi, P. Santhanam, P. E. Blöchl

DOI 10.1103/PhysRevB.42.76 · Physical Review B

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Abstract

We calculate the normal-superconducting phase boundary of a superconducting wire network in arbitrary magnetic fields using the London approximation of the linearized Ginzburg-Landau equation. Our formulation in terms of the constituent loop currents allows an iteration procedure to calculate the energy of a network, which in turn determines the mean-field transition temperature Tc(H). For infinite lattices, finite-order truncation in this scheme produces good agreement with other calculations and experiments.

Source-reported materials — not catalogue approval

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