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@INPROCEEDINGS{Fabrykiewicz:1049587,
      author       = {Fabrykiewicz, Piotr and Bhosale, Dnyaneshwar Raghunath and
                      Stekiel, Michal and Ovsianikov, A. K. and Hutanu, V. and
                      Schneidewind, Astrid and Meven, Martin},
      title        = {{N}ew {I}nsights into the {M}echanisms for
                      {M}ultiferroicity in {R}are {E}arth {O}rthoferrites},
      reportid     = {FZJ-2025-05391},
      year         = {2025},
      abstract     = {Magnetic 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},
      month         = {Mar},
      date          = {2025-03-10},
      organization  = {33rd Annual Meeting of the German
                       Crystallographic Society, Hannover
                       (Germany), 10 Mar 2025 - 13 Mar 2025},
      subtyp        = {After Call},
      cin          = {JCNS-FRM-II / JARA-FIT / MLZ / JCNS-4},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      $I:(DE-82)080009_20140620$ / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-4-20201012},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 632 - Materials – Quantum, Complex and
                      Functional Materials (POF4-632) / DFG project
                      G:(GEPRIS)410123747 - Mechanismen für das Auftreten von
                      Multiferrozität in Selten-Erd-Orthoferriten: Die Rolle der
                      Dzyaloshinskii-Moriya Wechselwirkung (410123747)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632 /
                      G:(GEPRIS)410123747},
      experiment   = {EXP:(DE-MLZ)HEIDI-20140101 /
                      EXP:(DE-MLZ)POLI-HEIDI-20140101 /
                      EXP:(DE-Juel1)ILL-IN12-20150421 /
                      EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)24},
      doi          = {10.34734/FZJ-2025-05391},
      url          = {https://juser.fz-juelich.de/record/1049587},
}