Double magnetic proximity in Fe/Fe0.32V0.68 superlattices

H. Palonen, Fridrik Magnus, Björgvin Hjörvarsson

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The conventional magnetic proximity effect and double-proximity effects were studied in a set of fully coherent high-quality Fe/Fe0.32V0.68 superlattices. Applying a simple model to the saturation magnetization, it is seen that the magnetic proximity effect is gigantic in magnitude in the alloy—the magnetization is enhanced by 20–450 % and the ordering temperature is enhanced by a factor of 2. The magnitude of the effect can be explained by the large susceptibility of the alloy above its intrinsic ordering temperature. Additionally, a strong dependence of the ordering temperature of single monolayers of Fe on the interlayer distance is observed. The results give insight into new ways of using alloying and large magnetic susceptibility combined with magnetic proximity effects to enhance the functionality of materials that are of interest for spintronic devices.
Original languageEnglish
Number of pages144419
JournalPhysical Review B
Volume98
Issue number14
DOIs
Publication statusPublished - 12 Oct 2018

Other keywords

  • Magnetic phase transitions
  • Proximity effect
  • Spintronics
  • Rafsegulfræði

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