2024/10/24 by M. Perdriat, Alrik Durand, Perdriat, Maxime +6
Engineering · Physics and Astronomy · #Advanced MEMS and NEMS Technologies #FOS: Physical sciences #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2410.18762
openalex publication_date 2024/10/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03
We report the observation of spin-dependent force induced by Nitrogen Vacancy (NV) centers embedded in a diamond crystal attached to a tethered oscillator. This result was obtained using a spin-dependent torque generated by a micro-diamond containing billions of NV centers, placed at the end of a commercially available silicon cantilever. %We demonstrate that the fundamental flexural mode of the cantilever is excited by the spins of the NV centers. These spins are uniformly coupled to an externally applied homogeneous magnetic field, which enables the NV centers to exert a measurable spin-dependent torque on the cantilever, driving its center of mass motion. Our experiment highlights the intricate interplay between the spin properties of NV centers and the mechanical behavior of the oscillator in the presence of a pure torque, providing a set of tools for exploring quantum effects in state of the art micro-mechanical systems.