Regensburg 2022 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 14: Cooperative Phenomena: Spin Structures and Magnetic Phase Transitions
MA 14.7: Vortrag
Dienstag, 6. September 2022, 11:15–11:30, H47
Magnetic and thermodynamic properties of van-der-Waals CuCrP 2 S 6 — •Kranthi Kumar Bestha1,2, Laura Teresa Corredor Bohorquez1, Vilmos Kocsis1, Sebastian Selter1, Saicharan Aswartham1, Bernd Buechner1,2, and Anja U. B. Wolter1 — 1Institute for Solid State Research, Leibniz IFW Dresden, 01069, Dresden, Germany — 2Institute of Solid State and Materials Physics and Wuerzburg-Dresden Cluster of Excellence ct.qmat, Technical University Dresden, 01062 Dresden, Germany
Two-dimensional van-der-Waals materials with intrinsic multiferroic properties are advantageous over 3D multiferroic materials for next generation nanoscale magnetic and electric devices. CuCrP 2 S 6 is a quasi-2D vdW multiferroic candidate with magnetic and ferroelectric polarization arising from Cr and Cu sublattices, respectively. CuCrP 2 S 6 exhibits intralayer ferromagnetic and interlayer antiferromagnetic interactions. M ( T ) and Cp ( T ) on single crystal CuCrP 2 S 6 reveal antiferromagnetic ordering at T N =31.5 K. Our magnetic data reveal predominant ferromagnetic interactions below the ordering temperature and short-range ferromagnetic correlations above T N . Magnetic fields applied in the ab-plane exhibit a spin-flop transition at a relatively small magnetic field of 4.3 kOe with weak anisotropy in the ab-plane. For a clear understanding of the magnetic anisotropy of this material, in-plane and out-of-plane angular-dependent dc magnetic studies were performed. Different symmetries are observed for both the in- and out-of-plane angular-dependent data. Our results are summarized in H-T phase diagrams for different main directions.