Dresden 2020 – scientific programme
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DS: Fachverband Dünne Schichten
DS 31: Poster: Layer Deposition and Layer Properties
DS 31.1: Poster
Wednesday, March 18, 2020, 15:00–18:00, P1A
Influence of Stoichiometry on the properties of Mn2Au thin films — •Daragh Mullarkey, Daniel Casey, and Igor V. Shvets — School of Physics, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
Mn2Au is a bimetallic antiferromagnet with a Néel temperature of approximately 1500 K. Here, we deposit (110) Mn2Au thin films onto Pt (111)/Al2O3 via molecular beam epitaxy. By varying the ratio of the Mn and Au atomic fluxes from separate Knudsen cells, precise control over the stoichiometry of the films can be obtained. We investigate how modifying the stoichiometry away from the ideal 2:1 Mn:Au ratio effects the crystallographic, electrical, and magnetic properties of the Mn2Au thin films.