Model calculations of the proximity effect in finite multilayers

Ciuhu, C.; Lodder, A.

doi:10.1006/spmi.2001.0994

Cited by 6 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In finite samples one has to face surface effects. Model calculations done on finite samples 9 show that the surface nucleation of the superconductivity is more pronounced for multilayers with thinner layers, but it almost disappears as one increases the thickness of the layers. Since the fitting problem mentioned above showed up particularly for thick-layer systems, taking into account surface superconductivity does not bring any essential improvement to the already existing results.…”

Section: Introductionmentioning

confidence: 99%

Influence of the boundary resistivity on the proximity effect

Ciuhu

Lodder

2001

Phys. Rev. B

Self Cite

View full text Add to dashboard Cite

We apply the theory of Takahashi and Tachiki in order to explain theoretically the dependence of the upper critical magnetic field of a S/N multilayer on the temperature. This problem has been already investigated in the literature, but with a use of an unphysical scaling parameter for the coherence length. We show explicitly that, in order to describe the data, such an unphysical parameter is unnecessary if one takes into account the boundary resisitivity of the S/N interface. We obtain a very good agreement with the experiments for the multilayer systems Nb/Cu and V/Ag, with various layer thicknesses.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of the boundary resistivity on the proximity effect

Ciuhu

Lodder

2001

Phys. Rev. B

Self Cite

View full text Add to dashboard Cite

show abstract

Deviations from mean-field behavior in disordered nanoscale superconductor–normal-metal–superconductor arrays

Kouh

Valles

2003

Phys. Rev. B

View full text Add to dashboard Cite

We have fabricated quasi-two-dimensional disordered arrays of nanoscale Pb grains coupled by an overlayer of Ag grains. Their temperature-dependent resistive transitions follow predictions for an array of mesoscopic superconductor-normal-metal-superconductor junctions. The decrease of their transition temperatures with Ag overlayer thickness systematically deviates from the Cooper limit theory of the proximity effect as the Pb grain size decreases. The deviations occur when the estimated number of Cooper pairs per grain is Ͻ1 and suggest the approach to a superconductor-to-metal transition.

show abstract