论文标题
在nd $ _2 $ _2 $ _2 $ o $ _7 $的Weyl阶段，山谷人口的磁场调整
Magnetic field tuning of the valley population in the Weyl phase of Nd$_2$Ir$_2$O$_7$
论文作者
论文摘要
沮丧的磁铁nd $ _2 $ ir $ _2 $ o $ _7 $，其中强烈的相关性与旋转轨道耦合起着至关重要的作用，预计将是韦尔半学的，并且可以托管类似dirac的山谷的宿主拓扑对。在这里，我们使用一个外部磁场来操纵与5D电子带耦合的局部稀土矩4F矩。低能量光谱法表明，只有几个特斯拉的场就足以创建电荷补偿动量空间不同区域的孔和电子袋，从而引入了可以通过该场进行调整的山谷人口转移。
The frustrated magnet Nd$_2$Ir$_2$O$_7$, where strong correlations together with spin-orbit coupling play a crucial role, is predicted to be a Weyl semimetal and to host topological pairs of bulk Dirac-like valleys. Here we use an external magnetic field to manipulate the localized rare earth 4f moments coupled to the 5d electronic bands. Low energy optical spectroscopy reveals that a field of only a few teslas suffices to create charge compensating pockets of holes and electrons in different regions of momentum space, thus introducing a valley population shift that can be tuned with the field.
