A Brillouin light scattering study of the spin-wave magnetic field dependence in a magnetic hybrid system made of an artificial spin-ice structure and a film underlayer
Abstract
We present a combined Brillouin light scattering (BLS) and micromagnetic simulation investigation of the magnetic-field-dependent spin-wave spectra in a hybrid structure made of permalloy (NiFe) artificial spin-ice (ASI) systems, composed of stadium-shaped nanoislands, deposited on the top of an unpatterned permalloy film with a nonmagnetic spacer layer. The thermal spin-wave spectra were recorded by BLS as a function of the magnetic field applied along the symmetry direction of the ASI sample. Magneto-optic Kerr effect magnetometry was used to measure the hysteresis loops in the same orientation as the BLS measurements. The frequency and the intensity of several spin-wave modes detected by BLS were measured as a function of the applied magnetic field. Micromagnetic simulations enabled us to identify the modes in terms of their frequency and spatial symmetry and to extract information about the existence and strength of the dynamic coupling, relevant only to a few modes of a given hybrid system. Using this approach, we suggest a way to understand if the dynamic coupling between ASI and film modes is present or not, with interesting implications for the development of future three-dimensional magnonic applications and devices.
- Authors:
-
[1];
[2];
[2];
[2];
[3];
[2]
- Università di Ferrara (Italy)
- University of Delaware, Newark, DE (United States)
- Istituto Officina dei Materiali del Consiglio Nazionale delle Ricerche (IOM-CNR), Perugia (Italy)
- Publication Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE
- OSTI Identifier:
- 1983628
- Alternate Identifier(s):
- OSTI ID: 1958347
- Grant/Contract Number:
- SC0020308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 133; Journal Issue: 8; Journal ID: ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Magnons; Nanomagnets; Ferromagnetic materials; Magnetic hysteresis; Photolithography; Brillouin spectroscopy; Spin wave spectroscopy; Magnetic nanostructures; Light scattering; Magnetooptical effects
Citation Formats
Montoncello, F., Kaffash, M. T., Carfagno, H., Doty, M. F., Gubbiotti, G., and Jungfleisch, M. B. A Brillouin light scattering study of the spin-wave magnetic field dependence in a magnetic hybrid system made of an artificial spin-ice structure and a film underlayer. United States: N. p., 2023.
Web. doi:10.1063/5.0140866.
Montoncello, F., Kaffash, M. T., Carfagno, H., Doty, M. F., Gubbiotti, G., & Jungfleisch, M. B. A Brillouin light scattering study of the spin-wave magnetic field dependence in a magnetic hybrid system made of an artificial spin-ice structure and a film underlayer. United States. https://doi.org/10.1063/5.0140866
Montoncello, F., Kaffash, M. T., Carfagno, H., Doty, M. F., Gubbiotti, G., and Jungfleisch, M. B. Thu .
"A Brillouin light scattering study of the spin-wave magnetic field dependence in a magnetic hybrid system made of an artificial spin-ice structure and a film underlayer". United States. https://doi.org/10.1063/5.0140866. https://www.osti.gov/servlets/purl/1983628.
@article{osti_1983628,
title = {A Brillouin light scattering study of the spin-wave magnetic field dependence in a magnetic hybrid system made of an artificial spin-ice structure and a film underlayer},
author = {Montoncello, F. and Kaffash, M. T. and Carfagno, H. and Doty, M. F. and Gubbiotti, G. and Jungfleisch, M. B.},
abstractNote = {We present a combined Brillouin light scattering (BLS) and micromagnetic simulation investigation of the magnetic-field-dependent spin-wave spectra in a hybrid structure made of permalloy (NiFe) artificial spin-ice (ASI) systems, composed of stadium-shaped nanoislands, deposited on the top of an unpatterned permalloy film with a nonmagnetic spacer layer. The thermal spin-wave spectra were recorded by BLS as a function of the magnetic field applied along the symmetry direction of the ASI sample. Magneto-optic Kerr effect magnetometry was used to measure the hysteresis loops in the same orientation as the BLS measurements. The frequency and the intensity of several spin-wave modes detected by BLS were measured as a function of the applied magnetic field. Micromagnetic simulations enabled us to identify the modes in terms of their frequency and spatial symmetry and to extract information about the existence and strength of the dynamic coupling, relevant only to a few modes of a given hybrid system. Using this approach, we suggest a way to understand if the dynamic coupling between ASI and film modes is present or not, with interesting implications for the development of future three-dimensional magnonic applications and devices.},
doi = {10.1063/5.0140866},
journal = {Journal of Applied Physics},
number = 8,
volume = 133,
place = {United States},
year = {Thu Feb 23 00:00:00 EST 2023},
month = {Thu Feb 23 00:00:00 EST 2023}
}
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