Weak localization in ferromagnetic (Ga,Mn)as nanostructures.
We report on the observation of weak localization in arrays of (Ga,Mn)As nanowires at millikelvin temperatures. The corresponding phase coherence length L phi is typically between 100 and 200 nm at 20 mK. Strong spin-orbit interaction in the material is manifested by a weak antilocalization correction around zero magnetic field.
Neumaier
D
D
Institut für Experimentelle und Angewandte Physik, Universität Regensburg, 93040 Regensburg, Germany. daniel.neumaier@physik.uni-regensburg.de
Wagner
K
K
Geissler
S
S
Wurstbauer
U
U
Sadowski
J
J
Wegscheider
W
W
Weiss
D
D