Structural and magnetic evolution of bimetallic MnAu clusters driven by asymmetric atomic migration

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Xiaohui Wei
  • Rulong Zhou
  • Williams Lefebvre
  • Kai He
  • Damien Le Roy
  • Ralph Skomski
  • Xingzhong Li
  • Jeffrey E. Shield
  • Matthew J. Kramer
  • Shuang Chen
  • David J. Sellmyer

Detail(s)

Original languageEnglish
Pages (from-to)1362-1368
Journal / PublicationNano Letters
Volume14
Issue number3
Publication statusPublished - 12 Mar 2014
Externally publishedYes

Abstract

The nanoscale structural, compositional, and magnetic properties are examined for annealed MnAu nanoclusters. The MnAu clusters order into the L10 structure, and monotonic size-dependences develop for the composition and lattice parameters, which are well reproduced by our density functional theory calculations. Simultaneously, Mn diffusion forms 5 Å nanoshells on larger clusters inducing significant magnetization in an otherwise antiferromagnetic system. The differing atomic mobilities yield new cluster nanostructures that can be employed generally to create novel physical properties. © 2014 American Chemical Society.

Research Area(s)

  • annealing, Bimetallic nanoparticles, Ostwald ripening, phase transformation, structure-property correlation, structure/composition/morphology evolution

Bibliographic Note

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Citation Format(s)

Structural and magnetic evolution of bimetallic MnAu clusters driven by asymmetric atomic migration. / Wei, Xiaohui; Zhou, Rulong; Lefebvre, Williams; He, Kai; Le Roy, Damien; Skomski, Ralph; Li, Xingzhong; Shield, Jeffrey E.; Kramer, Matthew J.; Chen, Shuang; Zeng, Xiao Cheng; Sellmyer, David J.

In: Nano Letters, Vol. 14, No. 3, 12.03.2014, p. 1362-1368.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review