Noncollinear paramagnetism of a GaAs two-dimensional hole system.

Authors :: Yeoh LA
Srinivasan A
Klochan O
Winkler R
Zülicke U
Simmons MY
Ritchie DA
Pepper M
Hamilton AR
Source :: Physical review letters [Phys Rev Lett] 2014 Dec 05; Vol. 113 (23), pp. 236401. Date of Electronic Publication: 2014 Dec 03.
Publication Year :: 2014
Abstract: We have performed transport measurements in tilted magnetic fields in a two-dimensional hole system grown on the surface of a (311)A GaAs crystal. A striking asymmetry of Shubnikov-de Haas oscillations occurs upon reversing the in-plane component of the magnetic field along the low-symmetry [2[over ¯]33] axis. As usual, the magnetoconductance oscillations are symmetric with respect to reversal of the in-plane field component aligned with the high-symmetry [011[over ¯]] axis. Our observations demonstrate that an in-plane magnetic field can generate an out-of-plane component of magnetization in a low-symmetry hole system, creating new possibilities for spin manipulation.