Plasmons in spin-orbit coupled two-dimensional hole gas systems

Plasmons in spin-orbit coupled two-dimensional hole gas systems

We study the dynamical dielectric function of a two-dimensional hole gas, exemplified on [001] GaAs and InAs quantum wells, within the Luttinger model extended to the two lowest subbands including bulk and structure inversion asymmetric terms. The plasmon dispersion shows a pronounced anisotropy for GaAsand InAs-based systems. In GaAs this leads to a suppression of plasmons due to Landau dampin...

Quantum nanostructures in strongly spin-orbit coupled two- dimensional systems

Anisotropic plasmons in a two-dimensional electron gas with spin-orbit interaction

S. M. Badalyan,1,2,* A. Matos-Abiague,2 G. Vignale,3 and J. Fabian2 1Department of Radiophysics, Yerevan State University, 1 A. Manoukian Street, Yerevan 375025, Armenia 2Department of Physics, University of Regensburg, 93040 Regensburg, Germany 3Department of Physics and Astronomy, University of Missouri–Columbia, Columbia, Missouri 65211, USA Received 9 February 2009; revised manuscript recei...

Plasmons of a two-dimensional electron gas in the presence of spin orbit interaction

Electronic liquid crystalline phases in a spin-orbit coupled two-dimensional electron gas

Erez Berg,1 Mark S. Rudner,1,2 and Steven A. Kivelson3 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 2IQOQI and Institute for Theoretical Physics, University of Innsbruck, AT-6020 Innsbruck, Austria 3Department of Physics, Stanford University, Stanford, California 94305, USA (Received 14 August 2011; revised manuscript received 26 December 2011; published 18 Ja...