论文标题
蜂窝中的多言发响应光散射和高频电子激发$ _2 $ ruo $ _3 $
Multipeak quasielastic light scattering and high-frequency electronic excitations in honeycomb Li$_2$RuO$_3$
论文作者
论文摘要
我们测量了Li $ _2 $ ruo $ _3 $中低频拉曼光谱的温度依赖性，并观察到在磁结构过渡温度下方和之上的Ru Honeycomb极化中观察到的多eake或差异。我们将这种散射归因于自旋系统中能密度的波动。在2150 $ cm^{ - 1} $上观察到高频电子光散射。它的强度显着提高了过渡温度，由于$ t_ {2g} $ - ru $^{4+} $ ions的流性，确认了对电子结构的实质性修饰。
We measured the temperature dependence of low-frequency Raman spectra in Li$_2$RuO$_3$, and observed multipeak quasielastic scattering in the Ru honeycomb polarizations below and above the magnetostructural transition temperature. We attribute this scattering to the fluctuations of the energy density in the spin system. High-frequency electronic light scattering was observed at 2150 $cm^{-1}$. Its intensity increased significantly below the transition temperature, confirming substantial modification of electronic structure due to removal of degeneracy in $t_{2g}$-manifold of Ru$^{4+}$ ions.
