Composite spin and orbital triplet superconductivity formed out of a non-Fermi-liquid phase | |
Article | |
关键词: ANDERSON; FIELD; MODEL; | |
DOI : 10.1103/PhysRevB.66.020504 | |
来源: SCIE |
【 摘 要 】
An unconventional superconducting phase is explored, which develops out of a non-Fermi-liquid phase of the two-channel Anderson-lattice model. It is characterized by a composite order parameter comprising of a local spin or orbital degree of freedom bound to triplet Cooper pairs with an isotropic and a nearest-neighbor form factor. The superconducting transition temperature peaks in the moderate intermediate valence regime and vanishes at integral valence. The gap function is nonanalytic and odd in frequency, and a pseudogap develops in the conduction-electron density of states which vanishes as \omega\ close to omega=0.
【 授权许可】
Free