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arXiv · 1108.4438

Nanoscale magnetic field mapping with a single spin scanning probe magnetometer

L. Rondin·J. -P. Tetienne·P. Spinicelli·C. Dal Savio·K. Karrai·G. Dantelle·A. Thiaville·S. Rohart·J. -F. Roch·V. Jacques
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Abstract

We demonstrate quantitative magnetic field mapping with nanoscale resolution, by applying a lock-in technique on the electron spin resonance frequency of a single nitrogen-vacancy defect placed at the apex of an atomic force microscope tip. In addition, we report an all-optical magnetic imaging technique which is sensitive to large off-axis magnetic fields, thus extending the operation range of diamond-based magnetometry. Both techniques are illustrated by using a magnetic hard disk as a test sample. Owing to the non-perturbing and quantitative nature of the magnetic probe, this work should open up numerous perspectives in nanomagnetism and spintronics.

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L. Rondin, J. -P. Tetienne, P. Spinicelli, C. Dal Savio, K. Karrai, G. Dantelle, A. Thiaville, S. Rohart, J. -F. Roch, V. Jacques. 2011-08-22. Nanoscale magnetic field mapping with a single spin scanning probe magnetometer. https://doi.org/10.1063/1.3703128

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