42 citations · 180 across the 20 of their papers we have counts for
6 papers · 1 filter
Mass imbalance in the ionic Hubbard model: a DRMG study
D. C. Padilla-González, R. Franco, J. Silva-Valencia
We investigated the ionic Hubbard model with mass imbalance in one dimension, using the density matrix renormalization group method. This model exhibits a band insulator phase and…
The role of the short range magnetic correlations on the gap opening of the topological Kondo insulators
E. Ramos, R. Franco, J. Silva-Valencia +2
In this work we investigate the effects of the short range magnetic correlations on the gap opening of the topological Kondo insulators. We consider an additional narrow band to th…
Spin-dependent beating patterns in thermoelectric properties: Filtering the carriers of the heat flux in a Kondo adatom system
A. C. Seridonio, E. C. Siqueira, R. Franco +3
We theoretically investigate the thermoelectric properties of a spin-polarized two-dimensional electron gas hosting a Kondo adatom hybridized with an STM tip. Such a setup is treat…
Real-Time Dynamics of a Spin Chain with Dzyaloshinskii-Moriya Interactions: Spiral Formation and Quantum Spin Oscillations
E. Solano-Carrillo, R. Franco, J. Silva-Valencia
We studied the non-equilibrium short-time dynamics of a spin-1/2 chain with Dzyaloshinskii-Moriya interactions after a sudden quench by a transverse field. We found that inhomogene…
Thermodynamic potential of the Periodic Anderson Model with the X-boson method: Chain Approximation
R. Franco, M. S. Figueira, M. E. Foglio
The Periodic Anderson Model (PAM) in the limit has been studied in a previous work employing the cumulant expansion with the hybridization as perturbation (M. S. Figue…
X-boson cumulant approach to the periodic Anderson model
R. Franco, M. S. Figueira, M. E. Foglio
The Periodic Anderson Model (PAM) can be studied in the infinite U limit by employing the Hubbard X operators to project out the unwanted states. We have already studied this probl…