论文标题
Fermi Arc自旋传输的电气调制通过拓扑半学纳米线中的三端构型
Electric modulation of the Fermi arc spin transport via three-terminal configuration in the topological semimetal nanowires
论文作者
论文摘要
旋转动量锁定是拓扑表面状态的关键特征，在旋转三位型中起着重要作用。在非磁性系统中受自旋动量锁定保护的电流诱导的自旋极化的电检测为开发旋转型物质提供了一个新的平台，而先前的研究主要基于磁性材料。在这项研究中，通过三端几何形状研究了狄拉克半分CD3AS2的自旋转运测量，并观察到具有高电阻和低电阻态的磁滞回路信号。磁滞通过逆转当前方向而反转，这说明了CD3AS2的自旋摩托锁定功能。此外，我们通过三端构型通过Fermi Arc的电气调制实现了自旋信号的on-Off状态，从而在自旋场效应晶体管中具有CD3AS2的巨大潜力。
Spin momentum locking is a key feature of the topological surface state, which plays an important role in spintronics. The electrical detection of current-induced spin polarization protected by the spin momentum locking in non-magnetic systems provides a new platform for developing spintronics while previous studies were mostly based on magnetic materials. In this study, the spin transport measurement of Dirac semimetal Cd3As2 was studied by the three-terminal geometry, and a hysteresis loop signal with high resistance and low resistance state was observed. The hysteresis was reversed by reversing the current direction, which illustrates the spin-momentum locking feature of Cd3As2. Furthermore, we realized the on-off states of the spin signals through electric modulation of the Fermi arc via the three-terminal configuration, which enables the great potential of Cd3As2 in spin field-effect transistors.
