Article Dans Une Revue Nature Communications Année : 2013

Stray-field imaging of magnetic vortices with a single diamond spin

L. Rondin
J.-P. Tetienne
  • Fonction : Auteur
T. Hingant
  • Fonction : Auteur
P. Spinicelli
  • Fonction : Auteur
J.-F. Roch
  • Fonction : Auteur
V. Jacques
  • Fonction : Auteur correspondant
  • PersonId : 1488673

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Résumé

Despite decades of advances in magnetic imaging, obtaining direct, quantitative information with nanometre scale spatial resolution remains an outstanding challenge. Recently, a technique has emerged that employs a single nitrogen-vacancy defect in diamond as an atomic-size magnetometer, which promises significant advances. However, the effectiveness of the technique when applied to magnetic nanostructures remains to be demonstrated. Here we use a scanning nitrogen-vacancy magnetometer to image a magnetic vortex, which is one of the most iconic objects of nanomagnetism, owing to the small size (∼10 nm) of the vortex core. We report three-dimensional, vectorial and quantitative measurements of the stray magnetic field emitted by a vortex in a ferromagnetic square dot, including the detection of the vortex core. We find excellent agreement with micromagnetic simulations, both for regular vortex structures and for higher-order magnetization states. These experiments establish scanning nitrogen-vacancy magnetometry as a practical and unique tool for fundamental studies in nanomagnetism.

Dates et versions

hal-04944756 , version 1 (13-02-2025)

Identifiants

Citer

L. Rondin, J.-P. Tetienne, S. Rohart, A. Thiaville, T. Hingant, et al.. Stray-field imaging of magnetic vortices with a single diamond spin. Nature Communications, 2013, 4, ⟨10.1038/ncomms3279⟩. ⟨hal-04944756⟩
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