Abstract
We investigate the temperature dependence of the intrinsic charge and spin transport in two-dimensional semiconductors with Rashba spin-orbit coupling. For 
(where α is the Rashba spin-orbit coupling parameter), the real part of the optical conductivity (σR(ω)) and the imaginary part of the spin Hall conductivity (σIsH(ω)) decrease with temperature monotonically. Outside this frequency range, σR(ω) and σIsH(ω) exhibit resonant behavior. At high frequencies, σRsH(ω) changes sign at a characteristic temperature T1. Our result suggests that the sign and magnitude of σRsH(ω) can be tuned by changing the temperature.