论文标题
$α$ -rucl $ _3 $的声音声子分散体
Acoustic phonon dispersion of $α$-RuCl$_3$
论文作者
论文摘要
声音最近被认为在解释$α$ -rucl $ _3 $中的半量化热厅效应方面发挥了不可或缺的作用。因此，我们介绍了其声音声子分散的急需的非弹性X射线散射测量，以及使用冷冻 - 光子法的计算。我们还讨论了一项温度研究，该研究最终显示了在低温下向非$ C2/m $空间组的一阶结构过渡。这些结果共同是$α$ -rucl $ _3 $的未来理论和实验研究的重要骨干。
Acoustic phonons have recently been posited as playing an integral role in explaining the half-quantized thermal Hall effect in $α$-RuCl$_3$. Therefore, we present much needed inelastic x-ray scattering measurements of its acoustic phonon dispersion, along with calculations using the frozen-phonon method. We also discuss a temperature study which conclusively shows a first-order structural transition to a non-$C2/m$ space group at low temperature. Together these results are an important backbone for future theoretical and experimental studies of $α$-RuCl$_3$.
