论文标题
半金属高级别iRate na3ir3o8中的磁相关性
Magnetic correlations in the semimetallic hyper-kagome iridate Na3Ir3O8
论文作者
论文摘要
我们提出了一项有关掺杂的量子旋转液体候选者的微观研究，即使用$^{23} $ na nmr。我们通过探测自旋晶格弛豫率，确定了均匀\ textbf {q} $ = 0 $敏感性的固有行为和动态响应。在整个研究的温度范围内，易感性与半学行为一致，尽管电子带对相关性的基本修饰。值得注意的是，绝缘的父型na $ _4 $ _4 $ _3 $ o $ _8 $在研究化合物中幸存下来的抗铁磁波动。旋转动力学与120 $^o $激发模式一致，显示短距离相关。
We present a microscopic study of a doped quantum spin liquid candidate, the hyperkagome Na$_3$Ir$_3$O$_8$ compound by using $^{23}$Na NMR. We determine the intrinsic behavior of the uniform \textbf{q} $ = 0$ susceptibility via shift measurements and the dynamical response by probing the spin-lattice relaxation rate. Throughout the studied temperature range, the susceptibility is consistent with a semimetal behavior, though with electronic bands substantially modified by correlations. Remarkably, the antiferromagnetic fluctuations present in the insulating parent compound Na$_4$Ir$_3$O$_8$ survive in the studied compound. The spin dynamics are consistent with 120$^o$ excitations modes displaying short-range correlations.
