Phys. Rev. Lett. 101, 226602 (2008) [4 pages]Mesoscopic Fluctuations in the Spin-Electric Susceptibility due to Rashba Spin-Orbit InteractionReceived 27 May 2008; published 26 November 2008 We investigate mesoscopic fluctuations in the spin polarization generated by a static electric field and by Rashba spin-orbit interaction in a disordered 2D electron gas. In a diagrammatic approach we find that the out-of-plane polarization—while being zero for self-averaging systems—exhibits large sample-to-sample fluctuations which are shown to be well within experimental reach. We evaluate the disorder-averaged variance of the susceptibility and find its dependence on magnetic field, spin-orbit interaction, dephasing, and chemical potential difference. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.226602
DOI:
10.1103/PhysRevLett.101.226602
PACS:
72.25.Dc, 73.23.−b, 75.80.+q, 85.75.−d
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