论文标题
通过旋转和磁场结合碳纳米管中的旋转电流产生和控制
Spin current generation and control in carbon nanotubes by combining rotation and magnetic field
论文作者
论文摘要
我们研究在存在均匀磁场的情况下旋转碳纳米管中弹道电子的量子动力学。当场平行于纳米管轴时，旋转诱导的电场带来了自旋轨道相互作用，该相互作用与动力学，惯性和Zeeman术语一起构成了系统的Schrödinger-Pauli Hamiltonian。该哈密顿量的完全对角化产生了征收和特征力，从而导致电荷和自旋电流的计算。我们的主要结果是证明是，通过适当地结合施加的磁场强度和旋转速度，一个人可以将一种电流调为零，同时保持另一个有限的速度，从而产生旋转电流发生器。
We study the quantum dynamics of ballistic electrons in rotating carbon nanotubes in the presence of a uniform magnetic field. When the field is parallel to the nanotube axis, the rotation-induced electric field brings about the spin-orbit interaction which, together with the kinetic, inertial, and Zeeman terms, compose the Schrödinger-Pauli Hamiltonian of the system. Full diagonalization of this Hamiltonian yields the eigenstates and eigenenergies leading to the calculation of the charge and spin currents. Our main result is the demonstration that, by suitably combining the applied magnetic field intensity and rotation speed, one can tune one of the currents to zero while keeping the other one finite, giving rise to a spin current generator.
