论文标题
单层过渡金属二盐元素中山谷依赖性自旋转运
Valley-dependent spin transport in monolayer transition-metal dichalcogenides
论文作者
论文摘要
我们从理论上研究谷依赖性的自旋转运在单层过渡金属二核苷中，其中由于自旋 - 瓦利耦合，预期的各种自旋和山谷物理。结果表明，生成了适当的载体掺杂和谷化旋转电流（VPSC）的旋转山谷 - 选择性激发。 VPSC导致自旋 - 电流大厅效应，横向自旋积累起源于动量空间中的浆果曲率。结果表明，带有自旋谷耦合的自旋激发导致山谷和自旋传输，这对于将来的低消耗纳米台化应用非常有前途。
We study valley-dependent spin transport theoretically in monolayer transition-metal dichalcogenides in which a variety of spin and valley physics are expected because of spin-valley coupling. The results show that the spins are valley-selectively excited with appropriate carrier doping and valley polarized spin current (VPSC) is generated. The VPSC leads to the spin-current Hall effect, transverse spin accumulation originating from the Berry curvature in momentum space. The results indicate that spin excitations with spin-valley coupling lead to both valley and spin transport, which is promising for future low-consumption nanodevice applications.
