SKM 2023 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 10: Correlated Electrons: Other Materials
TT 10.10: Vortrag
Montag, 27. März 2023, 17:30–17:45, HSZ 204
Switching of magnetic anisotropy from out-of-plane to in-plane in quasi-2D van der Waals (Mn1−xNix)2P2S6 single crystals — •Yuliia Shemerliuk, Anja U. B. Wolter, Bernd Büchner, and Saicharan Aswartham — Institut für Festkörperforschung, Leibniz IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
In the recent years magnetic two-dimensional van der Waals materials are at the forefront of the research. Magnetism has been extensively investigated in the family of TM2P2S6 (TM= Ni, Co, Fe, Mn & V). Transition metal TM substitution has been used as a technique to control magnetism in this family of compounds [1-3]. In this talk, we will present crystal growth by chemical vapor transport together with a thorough structural and magnetic characterization of the quasi-2D magnets (Mn1−xNix)2P2S6 with x = 0, 0.3, 0.5, 0.7 & 1. As-grown crystals exhibit a layered morphology with weak van der Waals interlayer interactions parallel to the crystallographic ab plane of the monoclinic symmetry in the space group C2/m (No. 12). In this series, the two neighboring members Mn2P2S6 and Ni2P2S6 differ in magnetic atoms, magnetic easy axes, spin anisotropy, and nearest neighbor magnetic interactions. The magnetization measurements show an antiferromagnetic ground state for all grown crystals. The magnetic ordering temperature TN shows nonmonotonic behavior. The magnetic anisotropy switches from out-of-plane to in-plane as a function of composition.