Spin Dynamics in Materials with Unconventional Symmetries

Magnetism has been one of the most intensively studied phenomena in condensed matter physics over the past century. The prospect of developing data storage and manipulation technologies capable of surpassing state-of-the-art schemes in both power efficiency and operational frequency has sparked a surge of interest in spin dynamics. A strong connection has been established between the symmetries exhibited by a magnetic material in equilibrium, and its spin dynamics. Recently, it has been recognized that breaking certain symmetries—either within the magnetic system itself or in other subsystems such as charge and lattice—gives rise to dynamic magnetic phenomena that challenge the traditional classification of magnetic materials into ferromagnets and antiferromagnets. The states enabling these unexpected behaviours are said to exhibit unconventional symmetries. Beyond their impact on spin dynamics, unconventional symmetries also influence the properties of topological magnetic textures, such as skyrmions, domain walls, merons, and hopfions.
Moreover, unconventional symmetries can be induced by externally driving a magnetic material into an excited state with symmetry properties distinct from its ground state. Many of these concepts have historically emerged from different research communities, each employing distinct methodologies and terminology. To bridge these gaps, this seminar aims to provide a unified platform that attracts a multidisciplinary audience, fosters the exchange of ideas, and facilitates discussions. To achieve this, the seminar is structured around four key topics: i) transport effects due to unconventional symmetries in the ground state; ii) angular momentum from chiral phonons; iii) topological magnetic textures and unconventional symmetries; iv) photoinduced unconventional symmetries in non-equilibrium states.

Distinguished international scientists and promising young talents will present groundbreaking work, stimulating knowledge exchange. Participants are encouraged to engage in discussions and contribute their findings through poster sessions, fostering a dynamic and collaborative scientific environment.

The conference language will be English. The Wilhelm and Else Heraeus-Foundation bears the cost of full-board accommodation for all participants.