标题： 手性诱导的角动量选择性通过碳纳米管中的轨道爱德斯坦效应 显示英文标题

标题： Chirality-induced selectivity of angular momentum by orbital Edelstein effect in carbon nanotubes

摘要： 碳纳米管（CNTs）是具有卓越强度、电导率和热性能的有前途的材料，使其在各种技术中具有前景。 除了具有锯齿形或扶手椅形边缘的非手性构型外，还存在具有破坏反演对称性的手性CNTs。 在这里，我们证明手性CNTs表现出手性诱导的轨道选择性（CIOS），这是由轨道爱德斯坦效应引起的，并可以作为手性诱导的自旋选择性（CISS）检测到。 我们发现轨道爱德斯坦磁化率是纳米管的手性角的奇函数，并与其半径成正比。 对于接近费米能级的金属CNTs，轨道爱德斯坦磁化率随能量的平方增加。 这使得金属手性纳米管的CISS和CIOS可以通过掺杂或施加栅极电压方便地调节，从而能够产生自旋和轨道极化的电流。 产生大扭矩的可能性使手性CNTs成为自旋轨道电子学和量子计算技术应用中的有趣候选材料。 显示英文摘要

摘要： Carbon nanotubes (CNTs) are promising materials exhibiting exceptional strength, electrical conductivity, and thermal properties, making them promising for various technologies. Besides achiral configurations with a zigzag or armchair edge, there exist chiral CNTs with a broken inversion symmetry. Here, we demonstrate that chiral CNTs exhibit chirality-induced orbital selectivity (CIOS), which is caused by the orbital Edelstein effect and could be detected as chirality-induced spin selectivity (CISS). We find that the orbital Edelstein susceptibility is an odd function of the chirality angle of the nanotube and is proportional to its radius. For metallic CNTs close to the Fermi level, the orbital Edelstein susceptibility increases quadratically with energy. This makes the CISS and CIOS of metallic chiral nanotubes conveniently tunable by doping or applying a gate voltage, which allows for the generation of spin- and orbital-polarized currents. The possibility of generating large torques makes chiral CNTs interesting candidates for technological applications in spin-orbitronics and quantum computing.