https://doi.org/10.1140/epjc/s10052-020-7735-y
Letter
Probing GHz gravitational waves with graviton–magnon resonance
Department of Physics, Kobe University, Kobe, 657-8501, Japan
* e-mail: asuka-ito@stu.kobe-u.ac.jp
Received:
30
November
2019
Accepted:
9
February
2020
Published online:
27
February
2020
A novel method for extending the frequency frontier in gravitational wave observations is proposed. It is shown that gravitational waves can excite a magnon. Thus, gravitational waves can be probed by a graviton–magnon detector which measures resonance fluorescence of magnons. Searching for gravitational waves with a wave length 
by using a ferromagnetic sample with a dimension l, the sensitivity of the graviton–magnon detector reaches spectral densities, around 
at 14 GHz and 
at 8.2 GHz, respectively.
© The Author(s), 2020
