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The persistent spin helix(PSH) system is considered to have promising applications in energy-conservation spintronics because it supports an extraordinarily long spin lifetime of carriers.Here,we predict that the existence of PSH state in two-dimensional(2 D) ferroelectric NbOI2 monolayers.Our first-principles calculation results show that there exists Dresselhaus-type spin-orbit coupling(SOC) band splitting near the conduction-band minimum(CBM) of the NbOI2 monolayer.It is... 相似文献
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