60 citations · 319 across the 15 of their papers we have counts for
16 papers
Finite-frequency dissipation in a driven Kondo model
Pier Paolo Baruselli, Erio Tosatti
Using both a resonant level model and the time-dependent Gutzwiller approximation, we study the power dissipation of a localized impurity hybridized with a conduction band when the…
Mechanical dissipation at a tip-induced Kondo onset
Pier Paolo Baruselli, Michele Fabrizio, Erio Tosatti
The onset or demise of Kondo effect in a magnetic impurity on a metal surface can be triggered, as often observed, by the simple mechanical nudging of a tip. This mechanically-driv…
Metallic, Magnetic and Molecular Nanocontacts
Ryan Requist, Pier Paolo Baruselli, Alexander Smogunov +3
Scanning tunnelling microscopy and break-junction experiments realize metallic and molecular nanocontacts that act as ideal one-dimensional channels between macroscopic electrodes.…
Cotunneling into a Kondo lattice with odd hybridization
Pier Paolo Baruselli, Matthias Vojta
Cotunneling into Kondo systems, where an electron enters a -electron material via a cotunneling process through the local-moment orbital, has been proposed to explain the charac…
Spin textures on general surfaces of the correlated topological insulator SmB6
Pier Paolo Baruselli, Matthias Vojta
Employing the expansion for a family of tight-binding models for SmB, we analytically compute topological surface states on a generic surfac…
Surface reconstruction in a tight-binding model for the topological Kondo insulator SmB6
Pier Paolo Baruselli, Matthias Vojta
For the strongly correlated topological insulator SmB6 we discuss the influence of a 2x1 reconstruction of the (001) surface on the topological surface states. Depending on microsc…
Co adatoms on Cu surfaces: ballistic conductance and Kondo temperature
P. P. Baruselli, R. Requist, A. Smogunov +2
The Kondo zero bias anomaly of Co adatoms probed by scanning tunneling microscopy is known to depend on the height of the tip above the surface, and this dependence is different on…
Distinct topological crystalline phases in models for the strongly correlated topological insulator SmB6
Pier Paolo Baruselli, Matthias Vojta
SmB6 was recently proposed to be both a strong topological insulator and a topological crystalline insulator. For this and related cubic topological Kondo insulators, we prove the…
Scanning tunneling spectroscopy and surface quasiparticle interference in models for the strongly correlated topological insulators SmB6 and PuB6
Pier Paolo Baruselli, Matthias Vojta
SmB6 is one of the candidate compounds for topological Kondo insulators, a class of materials which combines a non-trivial topological band structure with strong electronic correla…
Kondo holes in topological Kondo insulators: Spectral properties and surface quasiparticle interference
Pier Paolo Baruselli, Matthias Vojta
A fascinating type of symmetry-protected topological states of matter are topological Kondo insulators, where insulating behavior arises from Kondo screening of localized moments v…
From density functional to Kondo: magnetic impurities in nanotubes
Pier Paolo Baruselli, M. Fabrizio, A. Smogunov +2
Low-temperature electronic conductance in nanocontacts, scanning tunneling microscopy (STM), and metal break junctions involving magnetic atoms or molecules is a growing area with…
Kondo conductance across the smallest spin 1/2 radical molecule
Ryan Requist, Silvio Modesti, Pier Paolo Baruselli +3
Molecular contacts are generally poorly conducting because their energy levels tend to lie far from the Fermi energy of the metal contact, necessitating undesirably large gate and…
Ferromagnetic Kondo effect in a triple quantum dot system
Pier Paolo Baruselli, Ryan Requist, Michele Fabrizio +1
We propose that a simple device of three laterally-coupled quantum dots, the central one contacted by metal leads, can realize the ferromagnetic Kondo model, which is characterized…
Sub-ohmic two-level system representation of the Kondo effect
Pier Paolo Baruselli, Michele Fabrizio
It has been recently shown that the particle-hole symmetric Anderson impurity model can be mapped onto a slave-spin theory without any need of additional constraints. Here we…
Kondo effect of magnetic impurities on nanotubes
P. P. Baruselli, A. Smogunov, M. Fabrizio +1
The effect of magnetic impurities on the ballistic conductance of nanocontacts is, as suggested in recent work, amenable to ab initio study \cite{naturemat}. Our method proceeds vi…
Kondo impurities in nanotubes: the importance of being "in"
P. P. Baruselli, A. Smogunov, M. Fabrizio +1
Transition metal impurities will yield zero bias anomalies in the conductance of well contacted metallic carbon nanotubes, but Kondo temperatures and geometry dependences have not…