Spin Hall Conductivity of a Two-Dimensional Electron Gas with Random Rashba Field
A. Dyrdała and M. Rataja,b
aFaculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań
cThe Nano-Bio-Medical Centre, Umultowska 85, 61-614 Poznań, Poland
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Spin Hall effect in a two-dimensional electron gas with uniform: and random components of the Rashba spin-orbit interaction is considered theoretically. Relaxation time due to scattering on Rashba fluctuations is also calculated. It is shown that the presence of a uniform component of Rashba coupling not only modifies relaxation time, but also suppresses the contribution to the spin Hall conductivity due to random Rashba field.

DOI: 10.12693/APhysPolA.127.499
PACS numbers: 73.43.-f, 72.25.Hg, 73.61.Wp