SKM 2023 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 34: Focus Session: Spin-Phonon Coupling

Donnerstag, 30. März 2023, 09:30–13:00, HSZ 02

Recent work on ultrafast demagnetization in ferromagnets has demonstrated that angular momentum can be transferred from the spin system to the lattice on ultrashort time scales. These findings demonstrate that a detailed understanding of the mechanisms that transfer angular momentum between the spin system and the lattice are of key importance in spintronics. The goal of this focus session is to give an overview over spin-phonon coupling effects in solids, ranging from the Einstein-de Haas effect on ultrafast time scales to magnon-phonon coupling and acoustic spin pumping at GHz frequencies. Coordinators: Tobias Kampfrath, Freie Universität Berlin and Uli Nowak, Universität Konstanz.

	09:30	MA 34.1	Hauptvortrag: Polarized phonons carry angular momentum in ultrafast demagnetization — •Peter Baum
	10:00	MA 34.2	Hauptvortrag: Spin-phonon coupling in ordered magnets: origin and consequences — •Akashdeep Kamra
	10:30	MA 34.3	Hauptvortrag: Magnon-mechanics in high overtone acoustic resonators — •Hans Huebl
	11:00		15 min. break
	11:15	MA 34.4	Hauptvortrag: Cavity Magnomechanics: Harnessing the Magnomechanical Coupling for Applications in the Microwave and Optical Regimes — •Silvia Viola Kusminskiy
	11:45	MA 34.5	Hauptvortrag: Coherent spin-wave transport in an antiferromagnet — •Andrea Caviglia
	12:15	MA 34.6	Magnon-phonon coupling in polycrystalline metallic thin films — •Manuel Müller, Johannes Weber, Fabian Engelhardt, Victor A. S. V. Bittencourt, Thomas Luschmann, Silvia Viola Kusminskiy, Stephan Geprägs, Rudolf Gross, Matthias Althammer, and Hans Huebl
	12:30	MA 34.7	Parametric excitation and instabilities of spin waves driven by surface acoustic waves — •Moritz Geilen, Roman Verba, Alexandra Nicoloiu, Daniele Narducci, Adrian Dinescu, Milan Ender, Morteza Mohseni, Florin Ciubotaru, Mathias Weiler, Alexandru Müller, Burkard Hillebrands, Christoph Adelmann, and Philipp Pirro
	12:45	MA 34.8	Magnetic ordering and spin-lattice interactions in MCrO2 and MCrS2 (with M = Li, Na, K, Cu, Ag, Au) — •S. Mankovsky, H. Lange, S. Polesya, and H. Ebert