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Cross-sectional magnetic force microscopy of MnAs/GaAs(001)

Abstract : We investigate the magnetic domain structure and stray field of MnAs/GaAs(001) thin films by magnetic force microscopy of the growth surface and of cleavage edges. The strong uniaxial magnetic anisotropy of MnAs makes the magnetic properties very similar to those of a rectangular bar magnet with constant magnetization along the easy axis direction. By analytical calculations we estimate the out-of-plane magnetic stray field component acting on electrons injected by a MnAs contact into a GaAs-based device.
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Submitted on : Wednesday, December 9, 2015 - 5:22:16 PM
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B. Rache Salles, M. Marangolo, C. David, J. C. Girard. Cross-sectional magnetic force microscopy of MnAs/GaAs(001). Applied Physics Letters, American Institute of Physics, 2010, 96 (5), pp.052510. ⟨10.1063/1.3309421⟩. ⟨hal-01240952⟩