Effect of interface structure modifications on the properties of some magnetic multilayers

Amitesh Paul, Ajay Gupta*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations

Abstract

The effect of post-deposition thermal annealing on the interface structures of crystalline Fe-Tb multilayers and the associated changes in perpendicular magnetic anisotropy (PMA) has been studied using X-ray reflectivity, X-ray diffuse scattering and conversion electron Mössbauer spectroscopy. The main effect of annealing is a demixing at the interfaces attributed to a positive heat of mixing between Fe and Tb. Demixing is accompanied by a decrease in PMA due to increased shape anisotropy of the crystalline Fe layer. The results are compared with the effect of heavy ion irradiation in the same system.

Original languageEnglish
Pages (from-to)246-250
Number of pages5
JournalJournal of Alloys and Compounds
Volume326
Issue number1-2
DOIs
StatePublished - 9 Aug 2001
Externally publishedYes
EventProceedings of the International on Magnetic Materials - Calcutta, India
Duration: 17 Oct 200019 Oct 2000

Keywords

  • Interface structure and roughness
  • Magnetic anisotropy
  • Magnetic films and multilayers

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