Superconducting properties of V/Fe superlattices

H. K. Wong*, B. Y. Jin, H. Q. Yang, J. E. Hilliard, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We report measurements on the superconducting properties of V/Fe superlattices with various layer thicknesses. These samples were prepared with a novel UHV evaporator which can produce up to twenty different samples in the same run. The Fe layer, a strong pair breaker, suppresses the superconducting transition temperature in a systematic way. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D-3D crossover has been observed in the temperature dependence of the parallel upper critical field HC2∥. This implies the coexistence of superconductivity and ferromagnetismm. We observe three dimensional behavior for thinner Fe layers (∼1 atomic plane) and two dimensional behavior for thicker Fe layers (greater than 10 atomic planes).

Original languageEnglish (US)
Pages (from-to)259-264
Number of pages6
JournalSuperlattices and Microstructures
Volume1
Issue number3
DOIs
StatePublished - 1985

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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