(Ga,Mn)As on patterned GaAs(001) substrates: Growth and magnetotransport
W. Limmer, J. Daeubler, M. Glunk, T. Hummel, W. Schoch, R. Sauer
Abstract
A new type of (Ga,Mn)As microstructures with laterally confined electronic and magnetic properties has been realized by growing (Ga,Mn)As films on [1-10]-oriented ridge structures with (113)A sidewalls and (001) top layers prepared on GaAs(001) substrates. The temperature- and field-dependent magnetotransport data of the overgrown structures are compared with those obtained from planar reference samples revealing the coexistence of electronic and magnetic properties specific for (001) and (113)A (Ga,Mn)As on a single sample.
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