2025/03/27 by Yi Huang, P. M. C. Rourke, Huang, Y. +11 · 1 citation
Physics and Astronomy · Materials Science · #Mechanical and Optical Resonators #Quantum Electrodynamics and Casimir Effect #Chemical and Physical Properties of Materials
paper · doi:10.48550/arxiv.2503.21945
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 \qty9K. The experiment was conducted using a YIG sphere inside a microwave cavity, where we measured both the thermomechanical motion and the temperature-dependence of the magnon linewidth.