Tailoring spin-orbit torque in diluted magnetic semiconductors
  We study the spin orbit torque arising from an intrinsic linear Dresselhaus spin-orbit coupling in a single layer III-V diluted magnetic semiconductor. We investigate the transport properties and spin torque using the linear response theory and we report here : (1) a strong correlation exists between the angular dependence of the torque and the anisotropy of the Fermi surface; (2) the spin orbit torque depends nonlinearly on the exchange coupling. Our findings suggest the possibility to tailor the spin orbit torque magnitude and angular dependence by structural design. 
Hang Li, Xuhui Wang, Fatih Dogan, Aurelien Manchon
cond-mat.mes-hall cond-mat.stat-mech