论文标题
牙龈纳米线中的栅极调节和手性依赖性的旋转转换
Gate-tuneable and chirality-dependent charge-to-spin conversion in Tellurium nanowires
论文作者
论文摘要
手性材料是探索对称性，相对论效应和电子传输之间关系的理想游乐场。例如，在过去的十年中，已经对手性有机分子进行了深入研究以产生自旋偏振电流，但是它们的电子电导率较差限制了其应用的潜力。相反，手性无机材料（例如牙花列）是出色的电气传输材料，但尚未探索以实现设备中自旋极化的电控制。在这里，我们演示了手性单晶牙学纳米线中自旋极化的全电动产生，操纵和检测。通过记录大型（最高7％）和手性依赖性的单向磁磁性，我们表明，电产生的自旋极化的方向取决于纳米线的手动性并唯一地遵循当前方向，而其幅度可以通过静电栅操纵。我们的结果为开发基于无磁性手性的自旋设备的开发铺平了道路。
Chiral materials are the ideal playground for exploring the relation between symmetry, relativistic effects, and electronic transport. For instance, chiral organic molecules have been intensively studied to electrically generate spin-polarized currents in the last decade, but their poor electronic conductivity limits their potential for applications. Conversely, chiral inorganic materials such as Tellurium are excellent electrical transport materials, but have not been explored to enable the electrical control of spin polarization in devices. Here, we demonstrate the all-electrical generation, manipulation, and detection of spin polarization in chiral single-crystalline Tellurium nanowires. By recording a large (up to 7%) and chirality-dependent unidirectional magnetoresistance, we show that the orientation of the electrically generated spin polarization is determined by the nanowire handedness and uniquely follows the current direction, while its magnitude can be manipulated by an electrostatic gate. Our results pave the way for the development of magnet-free chirality-based spintronic devices.
