Composite spin and orbital triplet superconductivity formed out of a non-Fermi-liquid phase

Frithjof B. Anders

doi:10.1103/PhysRevB.66.020504

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Composite spin and orbital triplet superconductivity formed out of a non-Fermi-liquid phase

Frithjof B. Anders

DOI 10.1103/PhysRevB.66.020504 · Physical Review B

T1

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Abstract

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 |ω| close to ω=0.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown