2001/09/19 by Frithjof B. Anders · 1 citation
Materials Science · Physics and Astronomy · #Condensed matter physics #Cuprate #Density of states #Electron #Fermi level #Fermi liquid theory #Isotropy #Magnetic and transport properties of perovskites and related materials #Physics #Physics of Superconductivity and Magnetism #Pseudogap #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #Valence (chemistry) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.66.020504
4 pages, 4 figures, RevTex 4
arxiv created 2001/09/19 · openalex publication_date 2002/07/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 |\ensuremathω| close to \ensuremathω=0.