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DTSTART;TZID=Europe/Berlin:20260617T141500
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DTSTAMP:20260616T224934Z
CREATED:20260517T181410Z
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UID:6743-1781705700-1781709300@www.trr360.de
SUMMARY:TRR 360 Seminar:Active Magnets Achim Rosch
DESCRIPTION:Active Magnets \nProf. Dr. Achim Rosch \nInstitute for Theoretical Physics\, University of Cologne \n\n\n\n\n\nActive matter encompasses many-particle systems composed of self-propelled units\, such as flocks of birds or schools of fish. We ask whether similar physics can emerge in condensed-matter systems driven out of equilibrium\, for example by radiation. Focusing on magnetic systems with Goldstone-like modes that can be activated by weak external stimuli\, we study a ferrimagnet subject to a weak oscillating field. In our model\, domain walls acquire active motion in a direction selected by spontaneous symmetry breaking. This leads to qualitatively new dynamics: long-range order develops with remarkable efficiency and is highly robust against noise. We show that these properties originate from a novel form of dynamical frustration induced by the dynamics of Goldstone modes. \n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminartba-achim-rosch/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
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