FIELD-INDUCED SPIN EXCITATIONS IN RASHBA-DRESSELHAUS TWO-DIMENSIONAL ELECTRON SYSTEMS PROBED BY SURFACE ACOUSTIC WAVES
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Publication:3401839
DOI10.1142/S0217979209053242zbMATH Open1179.82157arXiv0712.2647OpenAlexW2964090156MaRDI QIDQ3401839
Author name not available (Why is that?)
Publication date: 1 February 2010
Published in: (Search for Journal in Brave)
Abstract: A spin-rotation symmetry in spin-orbit coupled two-dimensional electron systems gives rise to a long-lived spin excitation that is robust against short-range impurity scattering. The influence of a constant in-plane electric field on this persistent spin helix is studied. To probe the field-induced eigen-modes of the spin-charge coupled system, a surface acoustic wave is exploited that provides the wave-vector for resonant excitation. The approach takes advantage of methods worked out in the field of space-charge waves. Sharp resonances in the field dependence of the in-plane and out-of-plane magnetization are identified.
Full work available at URL: https://arxiv.org/abs/0712.2647
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