论文标题
载体手性秩序的kagome抗fiferromagnet的共振非弹性X射线散射研究
Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet
论文作者
论文摘要
我们研究了载体手性有序的kagome抗fiferromagnets的共振非弹性X射线散射（RIX）特征。利用尊重晶格站点对称性的小组理论形式主义，我们计算了Vesignieite化合物Bacu $ _ {3} $ v $ _ {2} $ _ {2} $ o $ $ $ _ {8} $（OH）$（OH）$ _ {2} $。我们表明，$ L $ - 边缘rixs Spectrum的极化依赖性可用于跟踪磁通分支。我们预测在非交叉$π-π$极化渠道中的非零$ L $ - 边缘信号。在$ k $ - 边缘，我们使用Shastry-Shraiman形式主义派生了两次有效的Rix和Raman散射操作员，以在Vesignieite中进行两麦克诺的激发。我们的派生考虑在虚拟跳跃过程中考虑旋转轨道耦合效应。我们发现矢量性手性相关性（四旋）贡献与RIX频谱成正比。我们的散射操作员形式主义可以应用于$ L $和$ K $边缘的许多非共线磁性材料。我们证明可以通过RIX实验访问矢量性手性相关性。
We study the resonant inelastic x-ray scattering (RIXS) features of vector chiral ordered kagome antiferromagnets. Utilizing a group theoretical formalism that respects lattice site symmetry, we calculated the $L$ -edge magnon contribution for the vesignieite compound BaCu$_{3}$V$_{2}$O$_{8}$(OH)$_{2}$. We show that polarization dependence of the $L$ -edge RIXS spectrum can be used to track magnon branches. We predict a non-zero $L$ -edge signal in the non-cross $π-π$ polarization channel. At the $K$ -edge, we derived the two-site effective RIXS and Raman scattering operator for two-magnon excitation in vesignieite using the Shastry-Shraiman formalism. Our derivation considers spin-orbit coupling effects in virtual hopping processes. We find vector chiral correlation (four-spin) contribution that is proportional to the RIXS spectrum. Our scattering operator formalism can be applied to a host of non-collinear non-coplanar magnetic materials at both the $L$ and $K$ -edge. We demonstrate that vector chiral correlations can be accessed by RIXS experiments.
