guest ::
| Home > Publications database > Mechanisms for Multiferroicity in Rare Earth Orthoferrites: An Overview |
| Home > Publications database > Mechanisms for Multiferroicity in Rare Earth Orthoferrites: An Overview |
| Conference Presentation (After Call) | FZJ-2024-05290 |
; ; ; ; ; ; ; ; ; ;
2024
This record in other databases:
Please use a persistent id in citations: doi:10.34734/FZJ-2024-05290
Abstract: Magnetic rare-earth ortheferrites of the RFeO3 type (R = rare earth element, model systems for studies and theoretical considerations on magnetic structures in sixties of the last century [[Whi69, Mar70, 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 [Tok12, Lee11]. We recently completed an extended project, Mechanisms for multiferroicity in rare-earth orthoferrites: Role of the Dzyaloshinskii-Moriya interaction, funded by the DFG (SA-3688/1-1). In this project we used various experimental methods to gain an overview of the 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. A close quantitative examination and comparisons with results from other groups reveal that the different parameters differ significantly between the different systems [Ovs22a, Ovs22c], . This causes a fragile balance between them and results in very different magnetic phase diagrams e.g. for HoFeO3, TbFeO3 and YbFeO3. [Ovs22a, Art12, Ovs22c], In addition, we also looked at TmFeO3 and DyFeO3 as part of our project and wWe were also able to achieve initial information for them. In our presentation, we provide an overview of the results of the orthoferrites we examined.[Art12] S. Artyukhin et al.; Nature Mater. 11 (2012) 694–699.[Ber68] E.F. Bertaut; Acta Cryst. A 24 (1968) 217.[Mar70] M. Marezio, J.P. Remeika and P. D. Dernier; Acta Cryst. B 26 (1970) 2008.[Ovs20] A.K. Ovsyanikov et al. J. Magn. Magn. Mater. 507 (2020) 166855. [Ovs22a] A.K. Ovsianikov et al.; JMMM 557 (2022) 169431, ISSN 0304-8853.[Ovs22c] A.K. Ovsianikov et al.; JMMM 563 (2022) 170025.[Whi69] R. White; J. Appl. Phys. 40 (1969) 1061.
Keyword(s): Magnetic Materials (1st) ; Information and Communication (1st) ; Condensed Matter Physics (2nd) ; Magnetism (2nd) ; Crystallography (2nd)
|
The record appears in these collections: |
PDF