Overscreened Kondo physics in four-fold symmetric Au systems doped with Co

21st Latin American Symposium on Solid State Physics

Roura-Bas, P.^1 ; Di Napoli, S.^1 ; Aligia, A.A.^2

Dpto de Física, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina^1

Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atomica, 8400 Bariloche, Argentina^2

关键词: Anderson models;    Co-doped;    Kondo physics;    Non-Fermi-liquid behavior;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/480/1/012013/pdf
DOI  :  10.1088/1742-6596/480/1/012013

来源: IOP

【 摘 要 】

We analyze the relation between a model recently proposed to describe Co doped Au chains with four-fold symmetric leads, and the generalized SU(2)×SU(2) Anderson model. We compare the structure of the Kondo limit in the general case. We calculate the spectral density and the conductance as a function of temperature in both cases, showing that both models display similar non-Fermi liquid behavior.