Spin wave localization in a magnonic crystal with a defect
Defects are typically regarded as detrimental in crystalline systems whose physical properties rely on symmetry. However, lattice defects are known to be an effective solution for applications requiring energy localization. Here, we report the experimental observation of spin wave localization in a one-dimensional magnonic crystal with broken translational symmetry. By operating in the diffractive regime, we directly image energy localization in both space and time using a magneto-inductive probe. This work provides the first direct space- and time-resolved experimental evidence of spin wave localization in a diffractive regime due to a single structural defect. These findings are in good agreement with theoretical simulations, validating the underlying physical mechanism.
Authors
- Michal Urbánek (ORCID: https://orcid.org/0000-0003-0072-2073)
- А. В. Дроздовский (ORCID: https://orcid.org/0000-0003-2127-1291)
- Oleg Kolokoltsev (ORCID: https://orcid.org/0000-0003-4534-4563)
- А. Б. Устинов (ORCID: https://orcid.org/0000-0002-7382-9210)
- Giuseppe Pirruccio (ORCID: https://orcid.org/0000-0001-7848-2853)
- César L. Ordóñez‐Romero (ORCID: https://orcid.org/0000-0002-0096-2125)
- G. Monsiváis (ORCID: https://orcid.org/0000-0003-1541-3468)
- Naser Qureshi (ORCID: https://orcid.org/0000-0002-5333-9126)
- Tomáš Hrnčíř (ORCID: https://orcid.org/0000-0001-6073-2412)
- Z. Lazcano (ORCID: https://orcid.org/0000-0003-2970-1268)
Institutions
- Tescan (Czechia) (CZ)
- Central European Institute of Technology (CZ)
- Saint Petersburg State Electrotechnical University (RU)
- Brno University of Technology (CZ)
- Benemérita Universidad Autónoma de Puebla (MX)
- Universidad Nacional Autónoma de México (MX)
Publication Details
- Journal
- Journal of Applied Physics
- Published
- 2025-11-06
- DOI
- https://doi.org/10.1063/5.0300548
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México