Single-spin spectroscopy of spontaneous and phase-locked spin-torque-oscillator dynamics
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-11-28 |
| Journal | Physical Review Applied |
| Authors | Adrian Solyom, Michael Caouette-Mansour, Brandon Ruffolo, P. M. Braganca, Lilian Childress |
| Institutions | McGill University, Western Digital (United States) |
| Citations | 3 |
Abstract
Section titled āAbstractāNanoscale magnetic circuits provide an alternate paradigm for computation and signal processing, but characterizing the GHz-frequency magnetic dynamics in these systems has been challenging. The authors use the single spin of a nitrogen-vacancy (N-$V$) center in diamond to probe nanoscale magnetic fields in the GHz regime, identifying signatures of a free-running and phase-locked spin-torque oscillator in the fluorescence spectrum of a proximal N-$V$, and measure how the dynamics impact the N-$V$ās spin relaxation. This technique could enable new sensing modalities for revealing the nanoscale structure of GHz-frequency dynamics in emerging magnetic nanotechnologies.