Speaker
Description
Chiral magnetic skyrmions arise due to the Dzyaloshinskii-Moriya interaction (DMI) as a result of the spin-orbit interaction in magnets lacking bulk or structure inversion asymmetry. I start my talk with a micromagnetic formulation of the energy functional and discuss briefly some general fundamental aspects. Using then a three-pronged scale-bridging approach combining DFT calculations with a generalized spin-lattice model containing the Heisenberg, DMI as well as magnetic anisotropy and dipolar interaction, with micromagnetism, we explore materials combinations for interfaces that offer great potentials hosting skyrmions, investigate their phase diagram, stability, lifetime and dynamics, their size as function external magnetic and temperature. We study optimal parameters for the detection by transport. I present our efforts to find skyrmions compatible to technology requirements.
