101 citations · 229 across the 12 of their papers we have counts for
7 papers · 1 filter
Unraveling the connection between high-order magnetic interactions and local-to-global spin Hamiltonian in non-collinear magnetic dimers
Ramon Cardias, Jhonatan dos Santos Silva, Anders Bergman +7
A spin Hamiltonian, which characterizes interatomic interactions between spin moments, is highly valuable in predicting and comprehending the magnetic properties of materials. A de…
Quantitative theory of magnetic interactions in solids
Attila Szilva, Yaroslav Kvashnin, Evgeny A. Stepanov +4
In this report we review the method of explicit calculations of interatomic exchange interactions of magnetic materials. This involves exchange mechanisms normally referred to as H…
Exchange constants for local spin Hamiltonians from tight-binding models
Simon Streib, Attila Szilva, Vladislav Borisov +7
We consider the mapping of tight-binding electronic structure theory to a local spin Hamiltonian, based on the adiabatic approximation for spin degrees of freedom in itinerant-elec…
Dzyaloshinskii-Moriya interaction in absence of spin-orbit coupling
Ramon Cardias, Anders Bergman, Attila Szilva +5
In contrast to conventional assumptions, we show that the Dzyaloshinskii-Moriya interaction can be of non-relativistic origin, in particular in materials with a non-collinear magne…
Theory of non-collinear interactions beyond Heisenberg exchange; applications to bcc Fe
A. Szilva, D. Thonig, P. F. Bessarab +8
We show for a simple non-collinear configuration of the atomistic spins (in particular, where one spin is rotated by a finite angle in a ferromagnetic background) that the pairwise…
Magnetism and ultra-fast magnetization dynamics of Co and CoMn alloys at finite temperature
R. Chimata, E. K. Delczeg-Czirjak, A. Szilva +9
Temperature-dependent magnetic experiments like pump-probe measurements generated by a pulsed laser have become a crucial technique for switching the magnetization in the picosecon…