Abstract
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The spin-related phenomena in semiconductor nanostructures are currently attracting considerable interest due to the novel physics and the potential application in electronics and optoelectronics. The Rashba and Dresselhaus spin-orbit interactions play an important role in controlling and manipulating the spin and charge degrees of freedom in low-dimensional and nanoscale semiconductor systems. We present a study of quantum transport and optical properties in spintronic materials in the terahertz frequency regime and discuss the potential application of spintronic materials in terahertz optoelectronic devices.