35 citations · 178 across the 14 of their papers we have counts for
4 papers · 1 filter
On the conservation of the angular momentum in ultrafast spin dynamics
Jacopo Simoni, Stefano Sanvito
The total angular momentum of a close system is a conserved quantity, which should remain constant in time for any excitation experiment once the pumping signal has extinguished. S…
Ab initio dynamical exchange interactions in frustrated anti-ferromagnets
Jacopo Simoni, Maria Stamenova, Stefano Sanvito
The ultrafast response to an optical pulse excitation of the spin-spin exchange interaction in transition metal anti-ferromagnets is studied within the framework of the time-depend…
Non-equilibrium magnetic fields in ab initio spin dynamics
Jacopo Simoni, Maria Stamenova, Stefano Sanvito
Starting from the continuity equation for the magnetization in time-dependent spin-density functional theory, we derive an expression for the effective time-dependent magnetic fiel…
The role of spin-orbit interaction in the ultrafast demagnetization of small iron clusters
Maria Stamenova, Jacopo Simoni, Stefano Sanvito
The ultra-fast demagnetization of small iron clusters initiated by an intense optical excitation is studied with time-dependent spin density functional theory (TDSDFT). In particul…