Bouaziz Juba, Ishida Hiroshi, Lounis Samir, Blügel Stefan
Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich & JARA, D-52425 Jülich, Germany.
College of Humanities and Sciences, Nihon University, Sakura-josui, Tokyo 156-8550, Japan.
Phys Rev Lett. 2021 Apr 9;126(14):147203. doi: 10.1103/PhysRevLett.126.147203.
Using multiple scattering theory, we show that the generally accepted expression of transverse resistivity in magnetic systems that host skyrmions, given by the linear superposition of the ordinary, the anomalous, and the topological Hall effect, is incomplete and must be amended by an additional term, the "noncollinear" Hall effect (NHE). Its angular form is determined by the magnetic texture, the spin-orbit field of the electrons, and the underlying crystal structure, allowing us to disentangle the NHE from the various other Hall contributions. Its magnitude is proportional to the spin-orbit interaction strength. The NHE is an essential term required for decoding two- and three-dimensional spin textures from transport experiments.
利用多重散射理论，我们表明，在包含斯格明子的磁性系统中，横向电阻率的普遍接受的表达式由普通、反常和拓扑霍尔效应的线性叠加给出，该表达式并不完整，必须通过一个额外的项，即“非共线”霍尔效应（NHE）进行修正。其角度形式由磁织构、电子的自旋轨道场和底层晶体结构决定，这使我们能够将NHE与其他各种霍尔贡献区分开来。其大小与自旋轨道相互作用强度成正比。NHE是从输运实验中解码二维和三维自旋织构所需的一个基本项。
