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MA: Fachverband Magnetismus
MA 10: Focus Session: Magnetic Phenomena from Phonon Chirality and Angular Momentum II (joint session MA/TT)
MA 10.3: Vortrag
Dienstag, 18. März 2025, 10:00–10:15, H16
Chiral phonon-induced magnetization reversal in 2D ferromagnets — •Daniel Bustamante Lopez1 and Dominik Juraschek2 — 1Department of Physics, Boston University, Boston, Massachusetts 02215, USA — 2Department of Applied Physics and Science Education, Eindhoven University of Technology, Eindhoven, Netherlands
In our previous work, we explored magnonic rectification, where a coherently excited chiral phonon generates an effective magnetic field capable of inducing quasistatic magnetization in antiferromagnetic materials. In this study, we extend this concept to ferromagnetic materials, demonstrating that phononic magnetic fields can achieve permanent magnetization reversal. We focus on two-dimensional chromium-based ferromagnetic crystals, including CrI3, CrGeTe3, and CrCl3, and investigate reversal mechanisms such as damping switching and precessional switching. Our findings reveal that phononic magnetic fields enable robust and permanent magnetization reversal within nanoseconds, highlighting their potential for ultrafast magnetic control.
Keywords: Magnetization reversal; 2D ferromagnets; Chiral phonons