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MA: Fachverband Magnetismus
MA 10: Focus Session: Magnetic Phenomena from Phonon Chirality and Angular Momentum II (joint session MA/TT)
Tuesday, March 18, 2025, 09:30–12:45, H16
The magnetic moment of the electron lies at the heart of magnetism and spintronics. However, recent research has unveiled the angular momentum and magnetic moment of chiral phonons as fundamental quantities in their own right. These chiral phonons give rise to a plethora of novel lattice phenomena analogous to electronic effects, such as the phonon Hall and phonon Zeeman effects. Moreover, they play a critical role in angular momentum transfer on ultrafast timescales, as seen in the Einstein-de Haas effect. Chiral phonons can also generate effective magnetic fields reaching the tesla scale, inducing magnetization in antiferromagnetic, paramagnetic, and even nonmagnetic materials - a phenomenon reminiscent of the Barnett effect. These advancements showcase phonon chirality and angular momentum as powerful emerging tools for generating and controlling magnetism. This focus session aims to highlight the latest breakthroughs in chiral-phonon magnetism and foster connections between the rapidly evolving field of chiral phononics and the broader magnetism research community.
Coordinators: Dominik M.Juraschek, Eindhoven University of Technology, d.m.juraschek@tue.nl; Martina Basini, ETH Zürich, m.basini@ethz.ch
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09:30 | MA 10.1 | Continuous-wave terahertz spectroscopy on chiral phonons — •Ji Eun Lee, Luca Eisele, Artem Pronin, and Martin Dressel |
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09:45 | MA 10.2 | Spin-lattice coupling in multiscale modeling: from angular momentum transfer to chiral phonons — •Markus Weißenhofer, Philipp Rieger, Sergiy Mankovsky, Akashdeep Kamra, MS Mrudul, Hubert Ebert, Ulrich Nowak, and Peter M. Oppeneer |
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10:00 | MA 10.3 | Chiral phonon-induced magnetization reversal in 2D ferromagnets — •Daniel Bustamante Lopez and Dominik Juraschek |
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10:15 | MA 10.4 | Chiral phonons in coupled magnon-phonon band structure — •Yelyzaveta Borysenko, Daniel Schick, and Ulrich Nowak |
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10:30 | MA 10.5 | Phonon Inverse Faraday effect from electron-phonon coupling — •Natalia Shabala and Matthias Geilhufe |
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10:45 | MA 10.6 | Temperature dependent magnon-phonon coupling in YIG/GGG heterostructures — •J. Weber, M. Cherkasskii, F. Engelhardt, S.T.B. Goennenwein, S.Viola Kusminskiy, S. Geprägs, R. Gross, M. Althammer, and H. Huebl |
| 11:00 | 15 min. break | ||
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11:15 | MA 10.7 | Modeling of the preparation and conservation of coherent phonon (pseudo) angular momentum — •Olga Minakova, Maximilian Frenzel, Carolina Paiva, Joanna M. Urban, Michael S. Spencer, Martin Wolf, Dominik M. Juraschek, and Sebastian F. Maehrlein |
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11:30 | MA 10.8 | Spin-spin interaction via chiral phonons — •Daniel Schick, Markus Weißenhofer, Akashdeep Kamra, and Ulrich Nowak |
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11:45 | MA 10.9 | Ultrafast generation of multicolor chiral phonons in magnetic and ferroelectric materials — •Omer Yaniv and Dominik M. Juraschek |
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12:00 | MA 10.10 | Chiral Phonons induced by Magnon-Phonon Coupling — •Hannah Bendin, Alexander Mook, Ingrid Mertig, and Robin R. Neumann |
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12:15 | MA 10.11 | Ultrafast laser-induced carrier and magnetization dynamics in SrTiO3 from real-time time-dependent DFT — •Andri Darmawan, Markus E. Gruner, and Rossitza Pentcheva |
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12:30 | MA 10.12 | Phonon pumping in ferromagnet/nonmagnetic insulator hybrid systems — •Richard Schlitz, Luise Holder, Johannes Weber, Mikhail Cherkasskii, Fabian Engelhardt, Julie Střihavková, Matthias Althammer, Silvia V. Kusminskiy, Hans Huebl, and Sebastian T. B. Goennenwein |