Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism

Michelle E. Jamer; Badih A. Assaf; George E. Sterbinsky; Dario A. Arena; Don Heiman

doi:10.1063/1.4903771

Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism

Materials Science 2014-12-10 v2

Authors: Michelle E. Jamer , Badih A. Assaf , George E. Sterbinsky , Dario A. Arena , Don Heiman

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Abstract

Spin gapless semiconductors are known to be strongly affected by structural disorder when grown epitaxially as thin films. The magnetic properties of Mn2CoAl thin films grown on GaAs (001) substrates are investigated here as a function of annealing. This study investigates the atomic-specific magnetic moments of Mn and Co atoms measured through X-ray magnetic circular dichroism as a function of annealing and the consequent structural ordering. The results indicate that the structural distortion mainly affects the Mn atoms as seen by the reduction of the magnetic moment from its predicted value.

Keywords

spin gapless semiconductors mn2coal thin films x-ray magnetic circular dichroism atomic magnetic moments structural disorder annealing epitaxial growth

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@article{arxiv.1410.1072,
  title  = {Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism},
  author = {Michelle E. Jamer and Badih A. Assaf and George E. Sterbinsky and Dario A. Arena and Don Heiman},
  journal= {arXiv preprint arXiv:1410.1072},
  year   = {2014}
}

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Submitted to Journal of Applied Physics on October 4, 2014

Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism

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