Perpendicular upper critical field and critical temperature of superconducting–interphase–normal-metal multilayers

M. Ledvij; L. Dobrosavljevic-Grujic; John R. Clem

doi:10.1103/PhysRevB.38.129

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Perpendicular upper critical field and critical temperature of superconducting–interphase–normal-metal multilayers

M. Ledvij, L. Dobrosavljevic-Grujic, John R. Clem

DOI 10.1103/PhysRevB.38.129 · Physical Review B

T1

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Abstract

Proximity-effect theory of superconductor–normal-metal (S/N) superlattices is extended to the case of multilayers with an interphase between S and N layers. A nonmonotonic dependence of the superlattice critical temperature on the period Λ is obtained theoretically, in accordance with experiments of Qian et al. on Nb/Ti. Similar behavior of the perpendicular upper critical field Hc2 is predicted.

Source-reported materials — not catalogue approval

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