Surface influenced magnetostructural transition in FeRh films

  • Kim J
  • Ryan P
  • Ding Y
 et al. 
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Abstract

Surface structural effects accompanying the antiferromagnetic-ferromagnetic
magnetostructral transition of epitaxial FeRh thin films were investigated
by grazing incidence x-ray scattering. Measurement of the film lattice
parameters and variation of x-ray incident angles allow observation
of the transition character on scales ranging from a few nm to the
total through-thickness of the film. Out-of-plane lattice measurements
confirm that the ferromagnetic phase nucleates from the surface during
the heating process and is retained at the surface below the transition
temperature during the cooling process. These results suggest that
surface strain relief fosters nucleation of the ferromagnetic phase.

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Authors

  • J. W. Kim

  • P. J. Ryan

  • Y. Ding

  • L. H. Lewis

  • M. Ali

  • C. J. Kinane

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