碲纳米线中栅极可调且依赖手性的电荷-自旋转换
Gate-tuneable and chirality-dependent charge-to-spin conversion in Tellurium nanowires
AI总结：
本研究针对手性有机材料电导率低的局限，在碲纳米线中实现全电自旋极化生操控与探测，发现其取向由手性和电流决定、大小栅极可调，为无磁手性自旋电子器件奠定基础。
摘要：
手性材料是探索对称性、相对论效应与电子输运之间关系的理想平台。例如，过去十年间人们对手性有机分子开展了大量研究以实现自旋极化电流的电生，但它们较差的电导率限制了应用潜力。相反，碲等手性无机材料是优异的电输运材料，但尚未被研究用于实现器件中自旋极化的电调控。本文展示了手性单晶碲纳米线中自旋极化的全电生、操控与探测。通过观测到高达7%且依赖手性的单向磁电阻，我们证明电生自旋极化的取向由纳米线的手性决定，且唯一随电流方向变化，其大小可通过静电栅极调控。本研究为无磁、基于手性的自旋电子器件的发展铺平了道路。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
