Regensburg 2025 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 37: Correlated Electrons: Poster
TT 37.14: Poster
Mittwoch, 19. März 2025, 15:00–18:00, P4
Magnetic Anisotropy and Low-Energy Spin Dynamics in van der Waals Magnets M2P2S6 Probed by Electron Spin Resonance — Joyal J. Abraham1,2, Yurii Senyk1,2, Yuliia Shemerliuk1, Sebastian Selter1,2, Saicharan Aswartham1, Bernd Büchner1,2,3, Vladislav Kataev1, and •Alexey Alfonsov1,3 — 1Leibniz IFW Dresden, 01069 Dresden, Germany — 2TU Dresden, 01062 Dresden, Germany — 3Würzburg-Dresden Cluster of Excellence ct.qmat, 01062 Dresden, Germany
In the past recent years magnetic van der Waals (vdW) materials have become increasingly attractive for the fundamental investigations since they provide immense possibility to study intrinsic magnetism in a low-dimensional limit. The weak vdW forces hold together the atomic monolayers in vdW crystals, which results in a poor interlayer coupling, and therefore renders these materials intrinsically two dimensional. That makes them particularly attractive for probing the low-dimensional physics while investigating bulk crystals. On the other hand, a remarkable success in exfoliation of this class of materials due to the lack of significant interlayer chemical bonds unlocks vast potential for applications in the fields of advanced electronics, optoelectronics, and spintronics. In this work we present the results of the electron spin resonance investigation of such magnetic vdW materials M2P2S6 (M = Mn, Ni, Cu, Cr) performed in the broad range of temperatures, magnetic fields and excitation frequencies, and discuss their low-energy spin dynamics as well as magnetic anisotropy responsible for the stabilization of the magnetic order.
Keywords: Antiferromagnetic resonance; Ferromagnetic resonance; Magnetic anisotropy; van der Waals; Two dimensional