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Magnonic beam splitter: The building block of parallel magnonic circuitry
- Source :
- Applied Physics Letters. 106:192406
- Publication Year :
- 2015
- Publisher :
- AIP Publishing, 2015.
-
Abstract
- We demonstrate a magnonic beam splitter that works by inter-converting magnetostatic surface and backward-volume spin waves propagating in orthogonal sections of a T-shaped yttrium iron garnet structure. The inter-conversion is enabled by the overlap of the surface and volume spin wave bands. This overlap results from the demagnetising field induced along the transversely magnetised section(-s) of the structure and the quantization of the transverse wave number of the propagating spin waves (which are therefore better described as waveguide modes). In agreement with numerical micromagnetic simulations, our Brillouin light scattering imaging experiments reveal that, depending on the frequency, the incident fundamental waveguide magnonic modes may also be converted into higher order waveguide modes. The magnonic beam splitter demonstrated here is an important step towards the development of parallel logic circuitry of magnonics.
- Subjects :
- Physics
Magnonics
Physics and Astronomy (miscellaneous)
Condensed matter physics
business.industry
Wave propagation
Magnon
Yttrium iron garnet
Physics::Optics
law.invention
Condensed Matter::Materials Science
chemistry.chemical_compound
Optics
chemistry
Spin wave
law
Condensed Matter::Strongly Correlated Electrons
business
Dispersion (water waves)
Waveguide
Beam splitter
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 106
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........a216bae3f4ba56425e93871cfb5988c5
- Full Text :
- https://doi.org/10.1063/1.4921206