57 citations · 76 across the 2 of their papers we have counts for
3 papers
Magnetization nutation induced by surface effects in nanomagnets
Roland Bastardis, Francois Vernay, Hamid Kachkachi
We investigate the magnetization dynamics of ferromagnetic nanoparticles in the atomistic approach taking account of surface anisotropy and the spin misalignment it causes. We demo…
Ab initio study of the CE magnetic phase in half-doped manganites: Purely magnetic versus double exchange description
Roland Bastardis, Coen de Graaf, Nathalie Guihery
The leading electronic interactions governing the local physics of the CE phase of half-doped manganites are extracted from correlated ab initio calculations performed on an embedd…
Microscopic origin of isotropic non-Heisenberg behavior in highly correlated systems
Roland Bastardis, Nathalie Guihery, Coen de Graaf
We have reanalyzed the microscopic origin of the isotropic deviations that are observed from the energy spacings predicted by the HDVV Hamiltonian. Usually, a biquadratic spin oper…