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Thermal bistability of magnon in yttrium iron garnet microspheres
- Source :
- Applied Physics Letters. 114:021101
- Publication Year :
- 2019
- Publisher :
- AIP Publishing, 2019.
-
Abstract
- In this work, the thermal bistability of magnons in yttrium iron garnet microspheres was experimentally characterized. Using high quality factor optical whispering gallery modes in the microsphere, the temperature change caused by the microwave pump is precisely measured by probing the optical resonance wavelength shift. It is found that temperature change also induces the magnonic frequency shift and the frequency shift depends on the crystal axis direction of the material. With some appropriate alignment of the magnetic field and the microsphere, the magnonic frequency shift induced by the thermal bistability from the microwave can be suppressed. Our results show its potential use in future experiments on magnon-based transducers.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Bistability
Condensed matter physics
Magnon
Yttrium iron garnet
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Magnetic field
Crystal
Condensed Matter::Materials Science
chemistry.chemical_compound
chemistry
0103 physical sciences
sense organs
Whispering-gallery wave
0210 nano-technology
Micromagnetics
Microwave
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 114
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........56d7c7b6ce25001f4084c1a73a03a890