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TT: Fachverband Tiefe Temperaturen

TT 63: Focus Session: Emerging Magnetic Phenomena from Chiral Phonons I (joint session MA/TT)

Thursday, March 21, 2024, 09:30–12:15, H 1058

Contemporary efforts in spintronics focus on utilizing and controlling electronic angular momentum for possible applications in data storage and processing. Only recently, an alternative has arisen in the form of angular momentum generated by circularly polarized (chiral) phonons. Chiral phonons have been shown to lead to a variety of novel magnetic phenomena, including a phonon Hall, phonon Einstein-de Haas, phonon Barnett, and phonon Zeeman effect. Phonon angular momentum can be utilized to control the magnetic state of solids and even to induce magnetization in nonmagnetic materials. These discoveries make the angular momentum of chiral phonons a promising tool for the control of magnetic materials and an emerging quantity of interest for spintronic applications. The goal of this focus session is to highlight topical research on novel magnetic phenomena arising from chiral phonons and to connect this rapidly developing field to the broader audience working in magnetism and spintronics.

Coordinators: Sebastian T. B. Goennenwein, Universität Konstanz, sebastian.goennenwein@uni-konstanz.de Ulrich Nowak, Universität Konstanz, ulrich.nowak@uni-konstanz.de

	09:30	TT 63.1	Invited Talk: Giant effective magnetic fields from chiral phonons — •Dominik M. Juraschek
	10:00	TT 63.2	Invited Talk: Chiral phonons in quantum materials revealed by the thermal Hall effect — •Gael Grissonnanche
	10:30	TT 63.3	Invited Talk: Phonon chirality and thermal Hall transport — •Benedetta Flebus and Allan H. MacDonald
	11:00		15 min. break
	11:15	TT 63.4	Invited Talk: Orbital magnetic moment of phonons in diamagnetic and paraelectric perovskites — Filip Kadlek, Christelle Kadlek, •Martina Basini, Sergey Kovalev, Jan-Christoph Deinert, Stefano Bonetti, and Stanislav Kamba
	11:45	TT 63.5	Invited Talk: Spin-lattice coupling in multiscale modeling — •Markus Weißenhofer, Sergiy Mankovsky, Svitlana Polesya, Hannah Lange, Akashdeep Kamra, Hubert Ebert, and Ulrich Nowak