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The kondo problem for very dilute ZnMn alloys under a Doorway State perturbation approach
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Ferromagnetic and underscreened Kondo behavior in quantum dot arrays
(American Physical Society, 2015-10-14)
We analyze the low energy properties of a device with N + 1 quantum dots in a star configuration. A central quantum dot is tunnel coupled to source and drain electrodes and to N quantum dots. Extending previous results for ...
Ionic Hamiltonians for transition metal atoms: effective exchange coupling and Kondo temperature
(IOP Publishing, 2016-12)
An ionic Hamiltonian for describing the interaction between a metal and a d-shell transition metal atom having an orbital singlet state is introduced and its properties analyzed using the Schrieffer–Wolf transformation ...
Two-state behaviour of Kondo trimers
(Europhysics Letters, 2006-01)
The electronic properties and spectroscopic features of a magnetic trimer with a Kondo-like coupling to a non-magnetic metallic substrate are analyzed at zero temperature. The substrate density of states is depressed in ...
Replicas of the Kondo peak due to electron-vibration interaction in molecular transport properties
(American Physical Society, 2016-03-24)
The low temperature properties of single level molecular quantum dots including both electron-electron andelectron-vibration interactions, are theoretically investigated. The calculated differential conductance in theKondo ...
Reentrant Kondo effect in a quantum impurity coupled to a metal-semiconductor hybrid contactReaparecimento do efeito Kondo em uma impureza quântica acoplada com um contato híbrido metal-semicondutor
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Física, 2021)
Relation between width of zero-bias anomaly and Kondo temperature in transport measurements through correlated quantum dots: Effect of asymmetric coupling to the leads
(American Physical Society, 2018-12)
The zero-bias anomaly at low temperatures, originated by the Kondo effect when an electric current flows through a system formed by a spin-1/2 quantum dot and two metallic contacts is theoretically investigated. In particular, ...
Kondo effect in graphene with Rashba spin-orbit coupling
(American Physical Society, 2014-07)
We study the Kondo screening of a magnetic impurity adsorbed in graphene in the presence of Rashba spin-orbit interaction. The system is described by an effective single-channel Anderson impurity model, which we analyze ...
Comportamiento crítico cuántico del modelo collar de Kondo aperiódico
(Universidad Nacional Mayor de San MarcosPE, 2009)
En este trabajo estudiamos el efecto de una modulación de intercambio aperiódica sobre el modelo del collar de Kondo. La relación de dispersión para las excitaciones del sistema es obtenida empleando una representación ...