论文标题
抗磁磁镁伪植物：动力学和扩散运输
Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport
论文作者
论文摘要
我们根据相关的假蛋白来制定抗磁磁氧化强及其运输的理论描述。这种制剂的需求和强度来自由旋转和 - 下龙棒形成的抗磁磁征原型，具体取决于材料各向异性。因此，在考虑抗铁磁特征模的骨气性时，证明了类似于自旋1/2电子的描述。引入假蛋白化学势的概念以及伪菲尔德并将镁旋转与伪旋转相关的概念，可以与任何给定的各向异性和相互作用的抗铁磁绝缘子中的扩散自旋传输保持一致的描述。采用形式主义，我们阐明了在托管具有不同极性的强磁绝缘子中最近非本地自旋转运实验的一般特征。本文开发的伪一种形式主义对任何一对耦合玻色子都是有效的，并且可能在包括相互作用的玻色子模式的其他系统中有用。
We formulate a theoretical description of antiferromagnetic magnons and their transport in terms of an associated pseudospin. The need and strength of this formulation emerges from the antiferromagnetic eigenmodes being formed from superpositions of spin-up and -down magnons, depending on the material anisotropies. Consequently, a description analogous to that of spin-1/2 electrons is demonstrated while accounting for the bosonic nature of the antiferromagnetic eigenmodes. Introducing the concepts of a pseudospin chemical potential together with a pseudofield and relating magnon spin to pseudospin allows a consistent description of diffusive spin transport in antiferromagnetic insulators with any given anisotropies and interactions. Employing the formalism developed, we elucidate the general features of recent non-local spin transport experiments in antiferromagnetic insulators hosting magnons with different polarisations. The pseudospin formalism developed herein is valid for any pair of coupled bosons and is likely to be useful in other systems comprising interacting bosonic modes.
