Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers

V. N. Kushnir*, S. L. Prischepa, J. Aarts, C. Bell, C. Cirillo, C. Attanasio, Chris Bell

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

9 Citations (Scopus)

Abstract

The effect of the exchange energy variation in weakly ferromagnetic alloys on the superconducting resistive transition of superconductor/ferromagnet/superconductor (S/F/S) trilayers is studied. Critical temperature, T-c, and resistive transitions versus the F-layer thickness, d(F), have been analyzed in Nb/Cu0.41Ni0.59/Nb and Nb/Pd0.81Ni0.19/Nb trilayers. We show that T-c(d(F)) dependence is sensitive to magnetic inhomogeneities in the F-layer for values of d(F) corresponding to thickness range where the pi-superconducting state is established.

Original languageEnglish
Pages (from-to)445-449
Number of pages5
JournalEuropean Physical Journal B: Condensed Matter
Volume80
Issue number4
DOIs
Publication statusPublished - Apr 2011

Keywords

  • TRANSITION-TEMPERATURE
  • RESISTIVE TRANSITIONS
  • CRITICAL FIELDS
  • PI-JUNCTION
  • NI ALLOYS
  • FERROMAGNET
  • PROXIMITY
  • MULTILAYERS
  • QUANTUM
  • HETEROSTRUCTURES

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