论文标题
磁系统中的异常自旋大厅和反旋转大厅效应
Anomalous spin Hall and inverse spin Hall effects in magnetic systems
论文作者
论文摘要
当电荷旋转互连涉及阶参数时，预测异常的自旋式孔效应（SHE）和异常的逆旋转式效果（ISHE）。当电荷电流与铁磁铁中的磁化电流$ \ vec m $平行时，可以生成一个旋转电流，其传播和极化是共线，并且可以产生施加电荷电流，或者可以在抗ferromagnet中的Neel Order Order $ \ vec n $中产生。当施加的电荷电流垂直于顺序参数时，可以生成两个旋转电流。一个是沿阶参数偏振的自旋电流，并沿电荷电流方向传播。另一个是一个在电荷电流方向上极化的，并沿阶参数方向传播。与顺序参数成正比的电荷电流是由异常ISHE中施加的自旋电流生成的。当施加了共线的传播和极化的旋转电流时，电荷电流沿订单参数的垂直电流（与自旋电流）分量，并且沿旋转电流沿阶参数的电流没有电流。对于具有繁殖和极化相互正交的施加的自旋电流，如果订单参数与旋转电流的极化相线，则会沿旋转电流传播方向沿旋转电流传播方向产生。如果阶参数与自旋电流的传播方向共线，则会产生沿旋转电流极化的电荷电流。还提出了实验验证。在应用方面，异常的最大优势之一是，她可以通过控制磁性材料中的磁化强度或NEEL顺序来控制所产生的自旋或电荷电流。
Anomalous spin-Hall effects (SHE) and anomalous inverse spin-Hall effects (ISHE) are predicted when the order parameters are involved in the charge-spin interconversion. A spin current whose propagation and polarization are collinear and transverse to an applied charge current can be generated when the charge current is parallel to the magnetization $\vec M$ in a ferromagnet or to the Neel order $\vec n$ in an anti-ferromagnet. When the applied charge current is perpendicular to the order parameter, two spin currents can be generated. One is the spin current polarized along the order parameter and propagating along the charge current direction. The other is the one polarized in the charge current direction and propagating along the order parameter direction. Charge currents proportional to the order parameter are generated by applied spin currents in the anomalous ISHE. When a spin current whose propagation and polarization are collinear is applied, the charge current is along the perpendicular (to the spin current) component of order parameter, and no current for order parameter along the spin current. For applied spin current with propagation and polarization mutually orthogonal to each other, a charge current along the spin current propagation direction is generated if the order parameter is collinear with the polarization of the spin current. A charge current along the polarization of spin current is generated if the order parameter is collinear with the propagation direction of the spin current. Experimental verifications are also proposed. In terms of applications, one of the great advantages of anomalous SHE is that one can control the generated spin or charge current by controlling the magnetization or the Neel order in the magnetic materials.
