Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer
Abstract
The focusing effect for spin waves excited by a curved micrometer-sized coplanar waveguide transducer on top of a 5-μm-thick epitaxial yttrium iron garnet film is studied by means of the micro-focused Mandelstam-Brillouin light scattering technique and micromagnetic simulations. The curvilinear transducer is designed to focus the backward volume spin waves on the in-plane bias magnetic field applied along the symmetry axis of the transducer. We show that two-dimensional maps of spin wave intensity exhibit nonreciprocal properties without mirror symmetry with respect to the magnetic field direction and the focusing effect. The observed effects are the consequence of nonreciprocity of the backward volume spin waves travelling at an angle toward the bias field direction.
- Authors:
-
- Univ. of Perugia, Perugia (Italy). Dep. of Physics and Geology
- Russian Academy of Sciences (RAS), Saratov (Russian Federation). Inst. of Radioengineering and Electronics (IRE)
- Russian Academy of Sciences (RAS), Saratov (Russian Federation). Inst. of Radioengineering and Electronics (IRE); Saratov State Univ. (Russian Federation)
- Saratov State Univ. (Russian Federation)
- Univ. of California, Riverside, CA (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Riverside, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Russian Science Foundation
- OSTI Identifier:
- 1566653
- Alternate Identifier(s):
- OSTI ID: 1477208
- Grant/Contract Number:
- SC0012670; 17-19-01673; 16-07- 01092
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 113; Journal Issue: 15; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics
Citation Formats
Madami, M., Khivintsev, Y., Gubbiotti, G., Dudko, G., Kozhevnikov, A., Sakharov, V., Stal'makhov, A., Khitun, A., and Filimonov, Y. Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer. United States: N. p., 2018.
Web. doi:10.1063/1.5050347.
Madami, M., Khivintsev, Y., Gubbiotti, G., Dudko, G., Kozhevnikov, A., Sakharov, V., Stal'makhov, A., Khitun, A., & Filimonov, Y. Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer. United States. https://doi.org/10.1063/1.5050347
Madami, M., Khivintsev, Y., Gubbiotti, G., Dudko, G., Kozhevnikov, A., Sakharov, V., Stal'makhov, A., Khitun, A., and Filimonov, Y. Fri .
"Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer". United States. https://doi.org/10.1063/1.5050347. https://www.osti.gov/servlets/purl/1566653.
@article{osti_1566653,
title = {Nonreciprocity of backward volume spin wave beams excited by the curved focusing transducer},
author = {Madami, M. and Khivintsev, Y. and Gubbiotti, G. and Dudko, G. and Kozhevnikov, A. and Sakharov, V. and Stal'makhov, A. and Khitun, A. and Filimonov, Y.},
abstractNote = {The focusing effect for spin waves excited by a curved micrometer-sized coplanar waveguide transducer on top of a 5-μm-thick epitaxial yttrium iron garnet film is studied by means of the micro-focused Mandelstam-Brillouin light scattering technique and micromagnetic simulations. The curvilinear transducer is designed to focus the backward volume spin waves on the in-plane bias magnetic field applied along the symmetry axis of the transducer. We show that two-dimensional maps of spin wave intensity exhibit nonreciprocal properties without mirror symmetry with respect to the magnetic field direction and the focusing effect. The observed effects are the consequence of nonreciprocity of the backward volume spin waves travelling at an angle toward the bias field direction.},
doi = {10.1063/1.5050347},
journal = {Applied Physics Letters},
number = 15,
volume = 113,
place = {United States},
year = {Fri Oct 12 00:00:00 EDT 2018},
month = {Fri Oct 12 00:00:00 EDT 2018}
}
Web of Science
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