论文标题
3D二次带触发的杂质Luttinger半金属：Friedel和Rkky振荡
Impurities in 3D quadratic band-touching Luttinger semimetals : Friedel and RKKY oscillations
论文作者
论文摘要
我们研究了3D Luttinger半法对局部电荷和自旋杂质的响应，这是掺杂的函数。这些材料的强旋轨耦合强烈影响弗里德尔的振荡和rkky相互作用。这可以在短距离内看到$ 1/r^4 $的响应差异和各向异性行为。即使电荷和自旋振荡被抹掉，并给出了异常的DiamaMagnetic Pauli敏感性，即使电荷和自旋振荡被涂抹，某些自旋轨道签名也对温度稳健。我们将结果与有关基于二晶的半身者（例如YPTBI）和Pyrochlore irate pr $ _2 $ ir $ _2 $ o $ o $ _7 $的实验文献进行了比较。
We investigate the response of 3D Luttinger semimetals to localized charge and spin impurities as a function of doping. The strong spin-orbit coupling of these materials strongly influences the Friedel oscillations and RKKY interactions. This can be seen at short distances with an $1/r^4$ divergence of the responses, and anisotropic behavior. Certain of the spin-orbital signatures are robust to temperature, even if the charge and spin oscillations are smeared out, and give an unusual diamagnetic Pauli susceptibility. We compare our results to the experimental literature on the bismuth-based half-Heuslers such as YPtBi and on the pyrochlore iridate Pr$_2$Ir$_2$O$_7$.
