论文标题
为什么长波长极限中的顺磁性手性相关性不促进muon-spin松弛
Why paramagnetic chiral correlations in the long wavelength limit do not contribute to muon-spin relaxation
论文作者
论文摘要
通过旋转和翻译的任何组合，无法在其镜像上超级叠加的晶体结构归类为手性。近年来，这种晶体结构已变得非常重要，因为它们容易托管非常规磁性和表现出拓扑磁纹理。这些特性是由dzyaloshinskii-moriya抗对称交换相互作用产生的，该交换是在空间反转时授权的。虽然最近的报告显示了MUON自旋旋转和放松技术，以提供有关在其有序阶段中特定于手性磁体的结构和动力学特性的独特信息，但这里的问题是该技术是否对临界温度上方的中子散射实验中观察到的顺磁性手性手性相关性敏感。在相关的长波长极限中，这表明它们不促进弛豫率，而弛豫率又只会探测非手续相关性。
A crystal structure that cannot be superposed on its mirror image by any combination of rotations and translations is classified as chiral. Such crystal structures have gained importance in recent years since they are prone to host unconventional magnetic orders and to exhibit topological magnetic textures. These properties result from the Dzyaloshinskii-Moriya antisymmetric exchange interaction which is authorized when space inversion is broken. While recent reports have shown the muon spin rotation and relaxation technique to provide unique information about structural and dynamical properties which are specific to chiral magnets in their ordered phase, the question here is whether this technique is sensitive to paramagnetic chiral correlations that are observed in neutron scattering experiments above the critical temperature. In the relevant long wavelength limit, it is shown that they do not contribute to the relaxation rate, which in turn only probes non-chiral correlations.
