Mismatch-induced type transition of a superconductor: Investigation using Ginzburg-Landau theory

Ioannis Giannakis; Defu Hou; Mei Huang; Hai-cang Ren

doi:10.1103/PhysRevB.75.012505

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Mismatch-induced type transition of a superconductor: Investigation using Ginzburg-Landau theory

Ioannis Giannakis, Defu Hou, Mei Huang, Hai-cang Ren

DOI 10.1103/PhysRevB.75.012505 · Physical Review B

T1

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Abstract

We use the Ginzburg-Landau theory near the transition temperature in order to examine the behavior of an inhomogeneous superconductor in the presence of a magnetic field. We find that a transition from type-I to type-II superconductivity occurs. Furthermore we calculate the critical value of the mismatch and estimate the contributions of the fluctuations of the condensate and the higher-order terms in the Ginzburg-Landau framework.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.18	Pressure not reported	unknown
Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7.19	Pressure not reported	unknown