Structural properties of Fe/Cu magnetic multilayers: A monte carlo approach

Jules Berlin Nde Kengne, Bernard Fongang, Serge Zekeng

Research output: Contribution to journalArticle

Abstract

Using atomistic Monte Carlo simulations, we investigated the impact of the interface on the structural properties of iron and copper (Fe/Cu) magnetic multilayers grown by Voronoi diagram. Interest in magnetic multilayers has recently emerged as they are shown to be promising candidates for magnetic storage media, magneto-resistive sensors and personalized medical treatment. As these artificial materials show large differences in properties compared to conventional ones, many experimental and theoretical works have been dedicated on shedding light on these differences and tremendous results have emerged. However, little is known about the influence of the interfaces on magnetic layers. Using numerical approaches, we show that the structure of each layer depends on its thickness and the interface morphology. The Fe and Cu layers can adopt either the body-centered-cubic (bcc) or face-centered-cubic (fcc) structure, while the interface can assume amorphous, bcc, fcc, or a mixture of bcc and fcc structures depending on the layer thicknesses. These results are in good agreement with the experiments. They could be helpful in understanding effects such as giant magneto-resistance from the structural perspective.

Original languageEnglish (US)
Article number1850012
JournalSPIN
Volume8
Issue number3
DOIs
StatePublished - Sep 1 2018
Externally publishedYes

Keywords

  • computational physics
  • GMR
  • Magnetic multilayers
  • Monte Carlo simulations
  • nanomaterial
  • structural properties
  • Voronoi diagram

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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