Ab initio study of effect of Co substitution on the magnetic properties of Ni and Pt-based Heusler alloys

Tufan Roy, Aparna Chakrabarti

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Using density functional theory based calculations, we have carried out in-depth studies of effect of Co substitution on the magnetic properties of Ni and Pt-based shape memory alloys. We show the systematic variation of the total magnetic moment, as a function of Co doping. A detailed analysis of evolution of Heisenberg exchange coupling parameters as a function of Co doping has been presented here. The strength of RKKY type of exchange interaction is found to decay with the increase of Co doping. We calculate and show the trend, how the Curie temperature of the systems vary with the Co doping.

Original languageEnglish
Pages (from-to)1449-1456
Number of pages8
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume381
Issue number16
DOIs
Publication statusPublished - 2017 Apr 25

Keywords

  • Density functional theory
  • Heusler alloy
  • Martensite transition
  • RKKY interaction

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