Charge Kondo effect and superconductivity in the Falikov-Kimball model with pair hopping

Ryu Shinzaki; Joji Nasu; Akihisa Koga

doi:10.1103/PhysRevB.97.125130

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Charge Kondo effect and superconductivity in the Falikov-Kimball model with pair hopping

Ryu Shinzaki, Joji Nasu, Akihisa Koga

DOI 10.1103/PhysRevB.97.125130 · Physical Review B

T1

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Abstract

We study the Falikov-Kimball model with the pair hopping between the conduction and localized bands to discuss how the charge Kondo effect is realized. By combining dynamical mean-field theory with the continuous time quantum Monte Carlo method, we clarify that the charge Kondo state survives even at zero temperature and this competes with the charge ordered and s-wave superconducting states. The role of the interorbital repulsion for the superconducting state is also addressed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
BiNiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
BaBiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
PbTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown