Symmetry properties of the nodal superconductor PrOs4Sb12
Symmetry properties of the nodal superconductor PrOs4Sb12
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DOI：
10.1103/physrevb.76.054514
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发表时间：
2007-08-01
影响因子：
3.7
通讯作者：
Curnoe, S. H.
中科院分区：
文献类型：
--
作者：
Abu Alrub, T. R.;Curnoe, S. H.
我们用对称性方法对PrOs4Sb12超导带隙函数进行了理论研究。三重态通道中的三组分有序参数最好地描述了超导电性。能隙函数是非简并的，下部分支在费米面的异常点处有四个尖点，这导致了态密度、比热和核自旋弛豫速率的幂函数行为。
We present a theoretical study of the superconducting gap function in PrOs4Sb12 using a symmetry-based approach. A three-component order parameter in the triplet channel best describes superconductivity. The gap function is nondegenerate and the lower branch has four cusp nodes at unusual points of the Fermi surface, which lead to power law behaviors in the density of states, specific heat, and nuclear spin relaxation rate.