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

Journal article

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. © 2006 American Institute of Physics.

Authors: Engel-Herbert, R; Hesjedal, T; Schaadt, D; Daweritz, L; Ploog, K

• Publication status: Published
• Journal: APPLIED PHYSICS LETTERS
• Volume: 88
• Issue: 5
• Pages: 1-3
• Publication date: 2006-01-30
• DOI: 10.1063/1.2171790
• ISSN: 0003-6951
• Language: English