Magnetostructure of MnAs on GaAs revisited

Ernst Bauer; Rachid Belkhou; Salia Cherifi; Andrea Locatelli; A. Pavlovska; Nicolas Rougemaille

doi:10.1116/1.2746353

Magnetostructure of MnAs on GaAs revisited

Materials Science 2009-11-13 v1

Authors: Ernst Bauer , Rachid Belkhou , Salia Cherifi , Andrea Locatelli , A. Pavlovska , Nicolas Rougemaille

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Abstract

The ferromagnetic to nonferromagnetic (α-β) phase transition in epitaxial MnAs layers on GaAs(100) is studied by x-ray magnetic circular dichroism and x-ray magnetic linear dichroism photoemission electron microscopy in order to elucidate the nature of the controversial nonferromagnetic state of β-MnAs. In the coexistence region of the two phases the β phase shows a clear XMLD signal characteristic of antiferromagnetism. The nature and the possible causes of the elusiveness of this magnetic state are discussed.

Keywords

magnetic phase transitions magnetic nanoparticles magnetocaloric effect

Cite

@article{arxiv.0712.0564,
  title  = {Magnetostructure of MnAs on GaAs revisited},
  author = {Ernst Bauer and Rachid Belkhou and Salia Cherifi and Andrea Locatelli and A. Pavlovska and Nicolas Rougemaille},
  journal= {arXiv preprint arXiv:0712.0564},
  year   = {2009}
}

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