Phenomenological theory of electromagnons in multiferroic systems
We analyze the collective excitations of a magnetoelectric multiferroic material and show that the coupling between magnetization and polarization fluctuations gives rise to hybrid modes---electromagnons---resulting from the mixing of magnons (oscillations of the magnetization field) and polarization waves (ferrons). We characterize their main properties and discuss their potential applications in multiferroic-based technologies. Additionally, we provide a phenomenological framework for these systems, which will be invaluable for describing the dynamics of the multiferromagnetic state.
Authors
- Guidobeth Sáez (ORCID: https://orcid.org/0000-0003-1401-2531)
- Patricio Vergara (ORCID: https://orcid.org/0009-0009-2114-092X)
- Mario Castro (ORCID: https://orcid.org/0000-0002-6956-8564)
- Carlos Saji (ORCID: https://orcid.org/0000-0003-3725-8200)
- S. Allende (ORCID: https://orcid.org/0000-0002-6138-6862)
- Álvaro S. Núñez (ORCID: https://orcid.org/0000-0002-6804-9703)
Institutions
- Universidad de Santiago de Chile (CL)
- Institut Català de Nanociència i Nanotecnologia (ES)
- University of Chile (CL)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-06-02
- DOI
- https://doi.org/10.1103/physrevb.111.214401
- Primary Topic
- Multiferroics and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agencia Nacional de Investigación y Desarrollo
- Fondo Nacional de Desarrollo Científico y Tecnológico