论文标题
金属抗铁磁铁中的域壁磁磁性理论
Theory of Domain-Wall Magnetoresistance in Metallic Antiferromagnets
论文作者
论文摘要
我们开发了一种理论，以计算具有不同自旋结构的抗铁磁（AFM）金属中的域壁磁场（DWMR）。在扩散的传输方案中，DWMR可以是{\ it负}，也可以取决于域壁方向和自旋结构。相反，当传输处于弹道式状态时，DWMR始终为正，并且大小取决于域壁的宽度和方向。我们的结果铺平了使用电测量结果来探测抗磁性金属中内自旋结构的方法。
We develop a theory to compute the domain-wall magnetoresistance (DWMR) in antiferromagnetic (AFM) metals with different spin structures. In the diffusive transport regime, the DWMR can be either {\it negative} or positive depending on the domain-wall orientation and spin structure. In contrast, when the transport is in the ballistic regime, the DWMR is always positive, and the magnitude depends on the width and orientation of the domain wall. Our results pave the way of using electrical measurements for probing the internal spin structure in antiferromagnetic metals.
