Epitaxial orientation and magnetic properties of MnAs thin films grown on (001) GaAs: Template effects
M Tanaka, JP Harbison, MC Park, YS Park…�- Applied physics�…, 1994 - pubs.aip.org
We have studied template effects in molecular beam epitaxy (MBE) of ferromagnetic MnAs
thin films on (001) GaAs substrates. When As2 flux was first supplied without Mn flux on the
(001) GaAs prior to the MnAs growth, the surface reconstruction was disordered c (4� 4), a
more As‐rich surface than c (4� 4). The growth direction of the MnAs thin film grown on this
surface is [1̄100] and the easy magnetization axis was found to be along the [1̄1̄20] of
MnAs and the [110] of GaAs. In contrast, when one monolayer of Mn was first deposited on�…
thin films on (001) GaAs substrates. When As2 flux was first supplied without Mn flux on the
(001) GaAs prior to the MnAs growth, the surface reconstruction was disordered c (4� 4), a
more As‐rich surface than c (4� 4). The growth direction of the MnAs thin film grown on this
surface is [1̄100] and the easy magnetization axis was found to be along the [1̄1̄20] of
MnAs and the [110] of GaAs. In contrast, when one monolayer of Mn was first deposited on�…