Multiangle Reconstruction of Domain Morphology with All-Optical Diamond Magnetometry

Research output: Contribution to journalJournal articleResearchpeer-review

Documents

  • Lucio Stefan
  • Anthony K. C. Tan
  • Baptiste Vindolet
  • Michael Hogen
  • Dickson Thian
  • Hang Khume Tan
  • Loic Rondin
  • Helena S. Knowles
  • Jean-Francois Roch
  • Anjan Soumyanarayanan
  • Mete Atature

Scanning diamond magnetometers based on the optically detected magnetic resonance of the nitrogenvacancy center offer very high sensitivity and noninvasive imaging capabilities when the stray fields emanating from ultrathin magnetic materials are sufficiently low (less than 10 mT). Beyond this low-field regime, the optical signal quenches and a quantitative measurement is challenging. While the fielddependent photoluminescence from the nitrogen-vacancy center can still provide qualitative information on magnetic morphology, this operation regime remains unexplored, particularly for surface magnetization larger than approximately 3 mA. Here, we introduce a multiangle reconstruction (MARE) that captures the full nanoscale domain morphology in all magnetic field regimes leading to photoluminescence quench. To demonstrate this, we use [Ir/Co/Pt]14 multilayer films with surface magnetization an order of magnitude larger than previous reports. Our approach brings noninvasive nanoscale magnetic field imaging capability of the nitrogen-vacancy center to the study of a wider pool of magnetic materials and phenomena.

Original languageEnglish
Article number014054
JournalPhysical Review Applied
Volume16
Issue number1
Number of pages15
ISSN2331-7019
DOIs
Publication statusPublished - 22 Jul 2021

    Research areas

  • TEMPERATURE MAGNETIC SKYRMIONS, NANOSCALE, MICROSCOPY

ID: 276323849