Using the density-matrix renormalization-group (DMRG) method we study a two-channel Kondo lattice model on a half-filled ladder. Our model involves an on-site s-wave and a nearest neighbor d-wave coupling between the local moments and the conduction electrons on the ladder. By changing the relative strength of the two Kondo interactions we examine the evolution of the system from a conventional Kondo insulator with a singlet at each site to a special kind of semimetallic state formed by overlapping of Zhang-Rice-like singlets. The DMRG is used to study how the spin and charge correlation functions evolve between these two regimes
The infinite-size version of the density-matrix renormalization-group approach in real space is appl...
Using a non-Abelian density matrix renormalization group method we determine the phase diagram of th...
The unique linear density of state around the Dirac points for the honeycomb lattice brings much nov...
We present the ground state phase diagram of the two-leg Kondo ladder obtained through the density-m...
Using a non-Abelian density matrix renormalization group method we determine the phase diagram of th...
The Mott insulator is found in the two-channel Kondo lattice by using the dynamical mean-field theor...
In this work, we study N-leg Kondo ladders at half-filling through the density matrix renormalizatio...
The density matrix renormalization group method (DMRG) is a powerful numerical method for strongly c...
We investigate the ground-state properties of a recently proposed model for a topological Kondo insu...
Topological Kondo insulators are strongly correlated materials where itinerant electrons hybridize w...
We study, by means of the density-matrix renormalization group (DMRG) technique, the evolution of th...
The effect of a local Kondo coupling and Hubbard interaction on the topological phase of the one-dim...
In the first part of this thesis we extend and apply the functional renormalization group meth...
We study odd-membered chains of spin-12 impurities, with each end connected to its own metallic lead...
The infinite-size version of the density-matrix renormalization-group approach in real space is appl...
The infinite-size version of the density-matrix renormalization-group approach in real space is appl...
Using a non-Abelian density matrix renormalization group method we determine the phase diagram of th...
The unique linear density of state around the Dirac points for the honeycomb lattice brings much nov...
We present the ground state phase diagram of the two-leg Kondo ladder obtained through the density-m...
Using a non-Abelian density matrix renormalization group method we determine the phase diagram of th...
The Mott insulator is found in the two-channel Kondo lattice by using the dynamical mean-field theor...
In this work, we study N-leg Kondo ladders at half-filling through the density matrix renormalizatio...
The density matrix renormalization group method (DMRG) is a powerful numerical method for strongly c...
We investigate the ground-state properties of a recently proposed model for a topological Kondo insu...
Topological Kondo insulators are strongly correlated materials where itinerant electrons hybridize w...
We study, by means of the density-matrix renormalization group (DMRG) technique, the evolution of th...
The effect of a local Kondo coupling and Hubbard interaction on the topological phase of the one-dim...
In the first part of this thesis we extend and apply the functional renormalization group meth...
We study odd-membered chains of spin-12 impurities, with each end connected to its own metallic lead...
The infinite-size version of the density-matrix renormalization-group approach in real space is appl...
The infinite-size version of the density-matrix renormalization-group approach in real space is appl...
Using a non-Abelian density matrix renormalization group method we determine the phase diagram of th...
The unique linear density of state around the Dirac points for the honeycomb lattice brings much nov...