Micromagnetic properties of MnAs(0001)/GaAs(111) epitaxial films

Roman Engel-Herbert, T. Hesjedal, D. M. Schaadt, L. Däweritz, K. H. Ploog

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Abstract

The micromagnetic properties of MnAs thin films grown on the (111)B-oriented GaAs surface have been investigated. Compared to films grown on (001) surfaces, these films exhibit completely different domain patterns, as the c axis of the hexagonal unit cell is oriented normal to the surface. In the course of the first order phase transition, ferromagnetic α -MnAs forms a network of quasihexagonal areas separated by Β -MnAs. We present an analysis of the micromagnetic properties based on imaging and simulations. We observe closure domains that either appear as a vortex-like state or a stripe structure.

Original languageEnglish (US)
Article number052505
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume88
Issue number5
DOIs
StatePublished - Feb 10 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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    Engel-Herbert, R., Hesjedal, T., Schaadt, D. M., Däweritz, L., & Ploog, K. H. (2006). Micromagnetic properties of MnAs(0001)/GaAs(111) epitaxial films. Applied Physics Letters, 88(5), 1-3. [052505]. https://doi.org/10.1063/1.2171790