The epitaxially grown MnAs films on GaAs(001) were studied using variable-temperature magnetic force microscopy (VT-MFM). The MnAs film underwent a first order structural phase transition around a critical temperature of 40°C. It was found that, due to the strain involved, the ferromagnetic α-MnAs and paramagnetic β-MnAs phase coexisted as stripes along MnAs[0001].

Jyoti Ranjan Mohanty

Department of Physics

T. Plake

T. Hesjedal

M. Kästner

L. Däweritz

K.H. Ploog

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Applied Physics Lettrs

Temperature-dependent magnetic force microscopy investigation of epitaxial MnAs films on GaAs(001)

Journal	Applied Physics Lettrs
ISSN	00036951