Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor

Author(s)
Onbasli, Mehmet Cengiz; Ross, Caroline A.
Thumbnail
DownloadPublished version (3.796Mb)
Publisher Policy
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
© 2020 American Physical Society. insulator yttrium-iron-garnet using the spin of a single nitrogen-vacancy (NV) center in diamond. The combined spectral resolution and sensitivity of the NV sensor allows us to resolve multiple spin-wave modes and characterize their damping. When damping is decreased sufficiently via spin injection, the modes auto-oscillate, as indicated by a strongly reduced linewidth, a diverging magnetic power spectral density, and synchronization of the STO frequency to an external microwave source. These results open the way for quantitative, nanoscale mapping of the microwave signals generated by STOs, as well as harnessing STOs as local probes of mesoscopic spin systems.
Date issued
2020-07
URI
https://hdl.handle.net/1721.1/127770
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Physical Review B
Publisher
American Physical Society (APS)
Citation
Zhang, H. et al. “Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor.” Physical Review B, 102, 2 (July 2020): 024404 © 2020 The Author(s)
Version: Final published version
ISSN
2469-9969
Collections