论文标题
Ising超导体状态密度的三胞胎相关性的签名
Signatures of triplet correlations in density of states of Ising superconductors
论文作者
论文摘要
最近已提出了几层过渡金属二分法（TMD）作为受控非常规超导性的平台。我们研究了基于TMD无序的单层状态的密度，非常规三重配对的表现。常规的单线配对吸引被认为是主要的配对相互作用。我们绘制温度平面和平面磁场平面中无序的ISING超导体的相图。后者抑制单线并促进三重态相关性。微不足道（非平凡）对称的三胞胎顺序参数与Singlet Order参数竞争（合作），该参数产生了丰富的相图。我们定位依赖模型的相位边界并计算每个不同阶段中的顺序参数。有了这些信息，我们通过求解戈尔科夫方程来获得状态的密度。顺序参数的三重态组件可能会通过显着增加临界场来改变状态密度的明显宽度。顺序参数的三重态成分导致状态的密度显着超过单线超导体中磁场和无序引起的拓宽。
The few-layer transition metal dichalcogenides (TMDs) have been recently suggested as a platform for controlled unconventional superconductivity. We study the manifestations of unconventional triplet pairing in the density of states of a disordered TMD based monolayer. The conventional singlet pairing attraction is assumed to be the dominant pairing interaction. We map the phase diagrams of disordered Ising superconductors in the plane of temperature and the in-plane magnetic field. The latter suppresses singlet and promote triplet correlations. The triplet order parameters of a trivial (non-trivial) symmetry compete (cooperate) with the singlet order parameter which gives rise to a rich phase diagram. We locate the model-dependent phase boundaries and compute the order parameters in each of the distinct phases. With this information, we obtain the density of states by solving the Gorkov equation. The triplet components of the order parameters may change an apparent width of the density of states by significantly increasing the critical field. The triplet components of the order parameters lead to the density of states broadening significantly exceeding the broadening induced by magnetic field and disorder in the singlet superconductor.
