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001049587 0247_ $$2datacite_doi$$a10.34734/FZJ-2025-05391
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001049587 1001_ $$0P:(DE-Juel1)201780$$aFabrykiewicz, Piotr$$b0$$eCorresponding author$$ufzj
001049587 1112_ $$a33rd Annual Meeting of the German Crystallographic Society$$cHannover$$d2025-03-10 - 2025-03-13$$gDGK2025$$wGermany
001049587 245__ $$aNew Insights into the Mechanisms for Multiferroicity in Rare Earth Orthoferrites
001049587 260__ $$c2025
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001049587 520__ $$aMagnetic rare-earth ortheferrites of the REFeO3 type (RE = rare earth element) are model systems for studies and theoretical considerations on magnetic structures in sixties of the last century [e.g. Ber68], have regained significant interest in the last decade. Their complex multiferroic and magnetocaloric features make them potential candidates for modern applications, e.g. in the area of spintronics.We focused on the Mechanisms for multiferroicity in rare-earth orthoferrites, especially the Role of the Dzyaloshinskii-Moriya interaction in a DFG project (SA-3688/1-1). Using various experimental methods we were able to gain various exchange parameters of different magnetic exchange interactions, the Heisenberg-exchange, the Dzyaloshinskii-Morya interaction, the single-ion anisotropy and external magnetic fields for different RFeO3 compounds by neutron diffraction and inelastic neutron scattering. The close quantitative examination and comparison with results from other groups revealed noticable differences between the different systems concerning the balance between the various magnetic interactions, resulting in very different magnetic phase diagrams e.g. for Ho, Tb and Yb system [Ovs22].In addition to this, we recently collected information on LuFeO3, TmFeO3 and DyFeO3, for instance magnon dispersions for the Lu and Dy system to extract magnetic interaction parameters and neutron diffraction data to determine the various magnetic phases of TmFeO3 (unpolarized) and of DyFeO3 (polarized and unpolarized). In the latter case we focused on the incommensurate ordering of the RE element without magnetic field, unique for Dy in this family of orthoferrites. In our presentation, we provide an overview of the results of the orthoferrites we examined.[Art12] S. Artyukhin et al.; Nature Mater. 11 (2012) 694.[Ber68] E.F. Bertaut; Acta Cryst. A 24 (1968) 217.[Ovs22] A.K. Ovsyanikov et al. JMMM 507 (2020) 166855; JMMM 557 (2022) 169431; JMMM 563 (2022) 170025.Acknowledgements (IN12, IN20, TAIPAN, TASP, EIGER, D23, D10):E. Ressouche, M. Enderle, U. Christensen, W. Schmidt, O.V. Usmanov, I.A. Zobkalo, K.A. Shaykhutdinov, Anton Stampf, Ketty Beauvois, Stanislav Nikitin, Bertrand Roessli, Yuri Kibalin, Bachir Ouladdiaf
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001049587 536__ $$0G:(GEPRIS)410123747$$aDFG project G:(GEPRIS)410123747 - Mechanismen für das Auftreten von Multiferrozität in Selten-Erd-Orthoferriten: Die Rolle der Dzyaloshinskii-Moriya Wechselwirkung (410123747)$$c410123747$$x2
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001049587 7001_ $$0P:(DE-Juel1)201684$$aBhosale, Dnyaneshwar Raghunath$$b1$$ufzj
001049587 7001_ $$0P:(DE-Juel1)194784$$aStekiel, Michal$$b2$$ufzj
001049587 7001_ $$0P:(DE-HGF)0$$aOvsianikov, A. K.$$b3
001049587 7001_ $$0P:(DE-HGF)0$$aHutanu, V.$$b4
001049587 7001_ $$0P:(DE-Juel1)156579$$aSchneidewind, Astrid$$b5$$ufzj
001049587 7001_ $$0P:(DE-Juel1)164297$$aMeven, Martin$$b6$$eCorresponding author$$ufzj
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