Evidence for ground state coherence in a two-dimensional Kondo lattice
Kondo lattices are ideal testbeds for the exploration of heavy-fermion quantum phases of
matter. While our understanding of Kondo lattices has traditionally relied on complex bulk f …
matter. While our understanding of Kondo lattices has traditionally relied on complex bulk f …
Magnetic-Field Dependence of the Fermi Surface
Magnetic-field-induced changes of the Fermi surface play a central role in theories of the
exotic quantum criticality of YbRh 2 Si 2. We have carried out de Haas–van Alphen …
exotic quantum criticality of YbRh 2 Si 2. We have carried out de Haas–van Alphen …
Ferromagnetic state in the one-dimensional Kondo lattice model
R Peters, N Kawakami - Physical Review B—Condensed Matter and Materials …, 2012 - APS
In our recent study [Phys. Rev. Lett. 108, 086402 (2012) PRLTAO 0031-9007
10.1103/PhysRevLett. 108.086402], we revealed the intriguing properties of the …
10.1103/PhysRevLett. 108.086402], we revealed the intriguing properties of the …
Interaction-driven transition between topological states in a Kondo insulator
J Werner, FF Assaad - Physical Review B—Condensed Matter and Materials …, 2013 - APS
Heavy fermion materials naturally combine strong spin-orbit interactions and electronic
correlations. When there is precisely one conduction electron per impurity spin, the coherent …
correlations. When there is precisely one conduction electron per impurity spin, the coherent …
Coexistence of magnetic order and Kondo effect in the Kondo-Heisenberg model
BH Bernhard, C Lacroix - Physical Review B, 2015 - APS
The Kondo lattice model is investigated through a fermionic mean-field approximation. The
obtained phase diagram, including the pure ferromagnetic (FM), antiferromagnetic (AF) …
obtained phase diagram, including the pure ferromagnetic (FM), antiferromagnetic (AF) …
Large and small Fermi-surface spin density waves in the Kondo lattice model
R Peters, N Kawakami - Physical Review B, 2015 - APS
We demonstrate the existence of metallic spin density waves (SDWs) in the Kondo lattice
model on a square lattice for a wide range of parameters by means of real space dynamical …
model on a square lattice for a wide range of parameters by means of real space dynamical …
Fermi surface topology of the two-dimensional Kondo lattice model: Dynamical cluster approximation approach
LC Martin, M Bercx, FF Assaad - Physical Review B—Condensed Matter and …, 2010 - APS
We report the results of extensive dynamical cluster approximation calculations, based on a
quantum Monte Carlo solver, for the two-dimensional Kondo lattice model. Our particular …
quantum Monte Carlo solver, for the two-dimensional Kondo lattice model. Our particular …
Metamagnetism and Lifshitz transitions in models for heavy fermions
M Bercx, FF Assaad - Physical Review B—Condensed Matter and Materials …, 2012 - APS
We investigate metamagnetic transitions in models for heavy fermions by considering the
doped Kondo lattice model in two dimensions. Results are obtained within the framework of …
doped Kondo lattice model in two dimensions. Results are obtained within the framework of …
Dynamically generated edge states in topological Kondo insulators
J Werner, FF Assaad - Physical Review B, 2014 - APS
Kondo insulators combine strong electronic correlations with spin-orbit coupling and thereby
provide a potential realization of correlated topological insulators. We present model …
provide a potential realization of correlated topological insulators. We present model …
Magnetic states in a three-dimensional topological Kondo insulator
We theoretically study the magnetic phase diagram of a three-dimensional topological
Kondo insulator by means of real-space dynamical mean-field theory. We find that …
Kondo insulator by means of real-space dynamical mean-field theory. We find that …