Artículos de revistas
Anisotropic spin-orbit induced splitting of intersubband spin plasmons
Date
2013-01Registration in:
Baboux, F.; Perez, F; Ullrich, C. A. ; D'Amico, I. ; Gomez, Javier Enrique; et al.; Anisotropic spin-orbit induced splitting of intersubband spin plasmons; EDP Sciences; EPJ Web of Conferences; 40; 1-2013; 18002-18006
2100-014X
Author
Baboux, F.
Perez, F
Ullrich, C. A.
D'Amico, I.
Gomez, Javier Enrique
Bernard, M.
Abstract
The anisotropic splitting of intersubband spin plasmons, resulting from spin-orbit coupling, is studied by angle-resolved inelastic light scattering on a [001]-oriented GaAs/AlGaAs quantum well. Confirming theoretical predictions made in [C. A. Ullrich and M. A. Flatte, Phys. Rev. B ´ 68, 235310 (2003)], this splitting is proven to exhibit a characteristic two-fold symmetry with the in-plane orientation, and to increase with increasing modulus of the excitation momentum. This opens the way to a more complete investigation, aiming at evidencing the existence of a collective spin-orbit field driving these excitations.