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MA: Fachverband Magnetismus
MA 15: Magnetic Thin Films II
MA 15.9: Talk
Tuesday, March 8, 2016, 11:45–12:00, H33
Dzyaloshinskii-Moriya interaction and magnetic texture in thin Fe films deposited on transition-metal dichalcogenides — •Daniel Schröder1, Svitlana Polesya1, Sergiy Mankovsky1, Hubert Ebert1, and Wolfgang Bensch2 — 1Dept. Chemie, Universität München, D-81377 München, Germany — 2Institute of Inorganic Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
The magnetic properties of Fe monolayers deposited on top of different types of transition-metal dichalcogenides (TMDC) have been investigated by means of first-principles DFT calculations. Changing the structure and the composition of the substrate results in a considerable variation of magnetic properties of the Fe overlayer, in particular - of the magnetocrystalline anisotropy and interatomic exchange interactions. The calculated Dzyaloshinskii-Moriya(DM) interaction parameters have been used for a subsequent investigation of the magnetic structure of Fe overlayers using Monte Carlo simulations. Rather strong DM interactions have been obtained for some of the systems under investigation, which can lead to the formation of skyrmionic structures varying with the strength of an applied external magnetic field.