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cond-mat.str-el2024
Identifying an effective model for the two-stage-Kondo regime: Numerical renormalization group results
P. A. Almeida, E. Vernek, E. V. Anda +2
A composite impurity in a metal can explore different configurations, where its net magnetic moment may be screened by the host electrons. An example is the two-stage Kondo (TSK) s…
cond-mat.str-el2024
Quantum impurity with 2/3 local moment in 1D quantum wires: an NRG study
P. A. Almeida, M. A. Manya, M. S. Figueira +3
We study a Kondo state that is strongly influenced by its proximity to an w^-1/2 singularity in the metallic host density of states. This singularity occurs at the bottom of the ba…