title: Noncollinear paramagnetism of a GaAs two-dimensional hole system.
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.
authors.affiliation: School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia.
authors.forename: L A
authors.initials: LA
authors.lastname: Yeoh
authors.affiliation: School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia.
authors.forename: A
authors.initials: A
authors.lastname: Srinivasan
authors.affiliation: School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia.
authors.forename: O
authors.initials: O
authors.lastname: Klochan
authors.affiliation: Department of Physics, Northern Illinois University, De Kalb, Illinois 60115, USA.
authors.forename: R
authors.initials: R
authors.lastname: Winkler
authors.affiliation: School of Chemical and Physical Sciences and MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand.
authors.forename: U
authors.initials: U
authors.lastname: Zülicke
authors.affiliation: Centre for Quantum Computation and Communication Technology, School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia.
authors.forename: M Y
authors.initials: MY
authors.lastname: Simmons
authors.affiliation: Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
authors.forename: D A
authors.initials: DA
authors.lastname: Ritchie
authors.affiliation: Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Pepper
authors.affiliation: School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia.
authors.forename: A R
authors.initials: AR
authors.lastname: Hamilton