论文标题
S+ - +D WAVE Multiband Eliashberg理论
S+-+d Wave Multiband Eliashberg Theory For The Iron Pnictides
论文作者
论文摘要
我们计算了S+ - +D-Wave多播种Eliashberg理论的框架中的临界温度。我们已经以数值为单位求解了这些方程，以查看输入参数的什么值，有一个具有非零临界温度的解决方案以及该解决方案的顺序参数的对称性是什么。对于我们的模型，我们考虑了Pnictide案例的简化，使我们能够获得最一般的信息。对于所选和代表性参数具有S+ - +D对称性的情况，我们计算了状态的超导密度，间隙的温度依赖性以及超流体密度，因此可以与实验数据进行比较。最后，我们表明这样的系统只有两倍的面内对称性，并且随着温度的升高而经历从节点到完全间隙的过渡。
We calculated the critical temperature in the framework of s+-+d-wave multiband Eliashberg theory. We have solved these equations numerically to see at what values of the input parameters there is a solution with a non-zero critical temperature and what is the symmetry of the order parameter of this solution. For our model we consider the pnictide case with simplifications that allow us to obtain the most general possible information. For selected and representative cases in which the order parameter has s+-+d symmetry, we calculated the superconducting density of states, the temperature dependence of the gaps, and the superfluid density so that comparison with experimental data can be made. Finally, we show that such a system has only a twofold in-plane symmetry and undergoes a transition from nodal to fully gapped with increasing temperature.
