1302.3627 (Yang Song et al.)
Yang Song, Hanan Dery
We present a general group-theoretical scheme for the transport in monolayer transition-metal dichalcogenides. The theory elucidates the major momentum and spin relaxation processes for electrons, holes and hot excitons. We expatiate on spin flips induced by flexural phonons and show that the spin relaxation is ultrafast in free-standing membranes while being mitigated in supported membranes. This behavior is universal in 2D membranes that respect mirror symmetry and it leads to a counterintuitive inverse relation between mobility and spin relaxation.
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http://arxiv.org/abs/1302.3627
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