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