172 citations · 402 across the 10 of their papers we have counts for
6 papers · 1 filter
Is Herbertsmithite far from an ideal antiferromagnet? Ab-initio answer including in-plane Dzyaloshinskii-Moriya interactions and coupling with extra-plane impurities
Flaurent Heully-Alary, Nadia Ben Amor, Nicolas Suaud +3
Herbertsmithite is known as the archetype of a S=1/2 nearest-neighbor Heisenberg antiferromagnet on the Kagomé lattice, theoretically presumed to be a quantum gapless spin liquid.…
A Wigner molecule at extremely low densities: a numerically exact study
Miguel Escobar Azor, Léa Brooke, Stefano Evangelisti +4
In this work we investigate Wigner localization at very low densities by means of the exact diagonalization of the Hamiltonian. This yields numerically exact results. In particular…
A surprising relation between double exchange and Heisenberg model spectra: Application to half-doped manganites
Roland Bastardis, Nathalie Guihery, Nicolas Suaud
The Zener polarons recently found in half-doped manganites are usually seen as mixed valence entities ruled by a double exchange Hamiltonian involving only correlated electrons of…
Environment effects on effective magnetic exchange integrals and local spectroscopy of extended strongly correlated systems
Marie-Bernadette Lepetit, Nicolas Suaud, Alain Gelle +1
The present work analyzes the importance of the different components of the environment effects on the local spectroscopy of extended strongly correlated systems. It has been found…
Ab initio evaluation of the charge-ordering in
Nicolas Suaud, Marie-Bernadette Lepetit
We report {\it ab initio} calculations of the charge ordering in using large configurations interaction methods on embedded fragments. Our major result is that…
Ab initio evaluation of local effective interactions in
Nicolas Suaud, Marie-Bernadette Lepetit
We will present the numerical evaluation of the hopping and magnetic exchange integrals for a nearest-neighbor model of the quarter-filled compound. The e…