论文标题
基于极地狄拉克半米的无质量双折射dirac费米的自旋场效应晶体管
Spin field-effect transistors based on massless birefringent Dirac fermions in polar Dirac semimetals
论文作者
论文摘要
DATTA-DAS型自旋场效应晶体管，在半导体异质结构中使用二维电子气体作为通道，在Spintronics中起关键作用。在这里，我们从理论上提出了一种基于极性狄拉克半含量中无质量的双发性狄拉克费米子的自旋场效应晶体管。旋转的操作是由单个相中强的自旋轨道耦合，极性空间群和狄拉克锥的存在引起的。由于极性狄拉克半法的无间隙带结构，振荡通道电导还可以由栅极电压的符号控制。这种自旋场效应晶体管为Spintronic设备的进一步设计提供了指导。
The Datta-Das-type spin field-effect transistor, using a two-dimensional electron gas in a semiconductor heterostructure as a channel, plays a key role in spintronics. Here, we theoretically present a type of spin field-effect transistor based on massless birefringent Dirac fermions in polar Dirac semimetals. The manipulation of spin arises from the existence of the strong spin-orbit coupling, polar space groups, and Dirac cones in a single phase. The oscillatory channel conductance can be controlled by the sign of gate voltage in addition to its magnitude due to the gapless band structures of polar Dirac semimetals. Such spin field-effect transistor provides guidance for the further design of spintronic devices.
