BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Supercritical propagation of nonlinear magnetization wave through an antiferromagnetic magnonic crystal DTSTART;VALUE=DATE-TIME:20240924T143000Z DTEND;VALUE=DATE-TIME:20240924T143500Z DTSTAMP;VALUE=DATE-TIME:20261006T080912Z UID:indico-contribution-306@indico.bitp.kiev.ua DESCRIPTION:Speakers: Ihor Syzon (National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»)\nAnalytical model of a nonl inear magnetization wave (MW) propagating through one-dimensional antifer- romagnetic magnonic crystal comprised of two sorts of antiferromagnets (AF M) is proposed for supercritical mode when the MW velocity exceeds the cri tical velocity of MW in both antiferromagnets AFMs or at least in one of t hem. Both AFMs that comprise the magnonic crystal are assumed to be two-su blattice uniaxial ones. The Landau-Lifshitz equations have been used in th e sigma model with account for the exchange bias between magnetic sublat-t ices of both AFMs\, the magnetic anisotropy\, the magnetic dipole-dipole i nteraction and the Dzyaloshynskii-Moriya interaction. The boundary conditi ons for the Néel vector (with the exchange bias between magnetic sublatti ces of both AFMs taken into account) are applied on the interface between two AFMs. The discrete sets of frequencies and velocities for the consider ed MW are obtained. Analysis of the results shows that the nonlinear MW is reflection-less\, phase-coherent and possesses a number of parameters tha t can be considered as degrees of freedom for encod-ing information. These findings open up new possibilities of digital data processing utilizing n onlinear MW propa-gating through antiferromagnetic magnonic crystal in sup ercritical mode.\n\nhttps://indico.bitp.kiev.ua/event/13/contributions/306 / LOCATION:Bogolyubov Institute for Theoretical Physics (Section 1-4)\, Inst itute of Mathematics (Section 5) 322 URL:https://indico.bitp.kiev.ua/event/13/contributions/306/ END:VEVENT END:VCALENDAR