Spin wave localization in a magnonic crystal with a defect
Abstract
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.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (10)
César L. Ordóñez-Romero
Instituto de Física, Universidad Nacional Autónoma de México, CU 1 , México D.F. 04510,
Zorayda Lazcano
Instituto de Física, Benemérita Universidad Autónoma de Puebla 2 , Puebla 72570,
Giuseppe Pirruccio
Instituto de Física, Universidad Nacional Autónoma de México, CU 1 , México D.F. 04510,
Michal Urbánek
CEITEC BUT, Brno University of Technology 1 , Brno,
Tomáš Hrnčíř
TESCAN Brno S.R.O. 4 , Brno 61200,
Aleksey B. Ustinov
Electrotechnical University of Saint Petersburgh 5 Department of Physical Electronics and Technology, , Saint Petersburgh,
Andrey Drozdovskii
Electrotechnical University of Saint Petersburgh 5 Department of Physical Electronics and Technology, , Saint Petersburgh,
Naser Qureshi
ICAT, Universidad Nacional Autónoma de México, CU 6 , México D.F. 04510,
Oleg Kolokoltsev
ICAT, Universidad Nacional Autónoma de México, CU 6 , México D.F. 04510,
Guillermo Monsivais
Instituto de Física, Universidad Nacional Autónoma de México, CU 1 , México D.F. 04510,