论文标题
J = 3/2超导体的自旋敏感性
Spin Susceptibility of a J=3/2 Superconductor
论文作者
论文摘要
我们讨论了超导体的自旋敏感性，其中库珀对由两个具有角动量j = 3/2的电子组成，这是由于强旋转轨道相互作用而引起的。在对Zeeman场的线性响应中，在分析中，对伪六五线体状态进行分析计算易感性。 $ a_ {1g} $对称状态的敏感性在真实空间中是各向同性的。对于$ e_g $和$ t_ {2g} $对称案例，结果敏感地取决于订单参数的选择。对于$ t_ {2g} $对称状态的敏感性是各向同性的，而对于$ e_ {g} $对称状态，它变为各向异性。我们还发现，在$ t_ {2g} $中，易感性张量具有偏置元素。
We discuss the spin susceptibility of superconductors in which a Cooper pair consists of two electrons having the angular momentum J=3/2 due to strong spin-orbit interactions. The susceptibility is calculated analytically for pseudospin quintet states in a cubic superconductor within the linear response to a Zeeman field. The susceptibility for $A_{1g}$ symmetry states is isotropic in real space. For $E_g$ and $T_{2g}$ symmetry cases, the results depend sensitively on choices of order parameter. The susceptibility is isotropic for a $T_{2g}$ symmetry state, whereas it becomes anisotropic for an $E_{g} $ symmetry state. We also find in a $T_{2g}$ state that the susceptibility tensor has off-diagonal elements.
