Cryogenic magnomechanics for thermometry applications
Cavity magnomechanics combines strong coupling between magnons in a dielectric material and microwave cavity photons with long-lived mechanical resonances. Forming a triple resonance condition, this hybrid quantum system promises many advantages in quantum technologies, yet has never been studied at the cryogenic temperatures required to reveal such quantum properties. We report the observation of magnomechanics at cryogenic temperatures down to 9 K. The experiment was conducted using a yttrium iron garnet sphere inside a microwave cavity, where we measured both the thermomechanical motion and the temperature-dependence of the magnon linewidth.
Authors
- Yunhu Huang (ORCID: https://orcid.org/0000-0001-9856-8494)
- P. M. C. Rourke (ORCID: https://orcid.org/0000-0001-7875-9592)
- Anna Peruzzi (ORCID: https://orcid.org/0000-0001-6647-3933)
- Jeongwan Jin (ORCID: https://orcid.org/0000-0003-1902-9826)
- J. P. Davis (ORCID: https://orcid.org/0000-0002-3798-0976)
- Alireza Rashedi (ORCID: https://orcid.org/0009-0001-6713-5351)
- M. S. Ebrahimi (ORCID: https://orcid.org/0000-0002-6783-817X)
Institutions
- University of Alberta (CA)
- National Research Council Canada (CA)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2025-08-25
- DOI
- https://doi.org/10.1063/5.0271756
- Primary Topic
- Mechanical and Optical Resonators
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Alberta Innovates
- Natural Sciences and Engineering Research Council of Canada
- National Research Council Canada