Introduction:
The microscopic understanding of magnetization and spin dynamics in magnets, particularly in magnets of reduced dimensions, is crucial for future technological development. The dynamics of classical spins are usually described by the Landau-Lifshitz-Gilbert equation and its modifications to include momentum transfer by spin transfer torques or spin-orbit torques. A crucial quantity in determining the spin dynamics is the so-called Gilbert damping, which is a non-local tensor, but in most theories it is approximated by a single scalar parameter. During the project we are going beyond this approximation, and calculate non-local Gilbert damping tensor components in various magnetic structures at the nanometer and atomic scale.

Tasks:
The candidate is going to learn about the various methods to calculate the Gilbert damping. Based on our recently developed implementation of the exchange torque correlation to calculate the diagonal elements of the site-nonlocal Gilbert damping tensor in the real-space KKR method [ https://doi.org/10.1103/PhysRevB.109.094417 ], the candidate is going to study Gilbert damping properties of magnets in reduced dimensions by computer simulations.

Composition of tasks: Theory 20%, Programming 20%, Computer simulations 60%.

Expected results:
The candidate will get insight into the active and emerging field of nanomagnetism, which will enable him/her joining international research activities in this field. Furthermore, the candidate can develop skills related to scientific programming, computer simulations and electronic structure program packages, which will certainly be useful for his/her future career.

Further information: https://wigner.hu/infopages/palotas.krisztian , http://www.phy.bme.hu/~palotas/pub.html