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Nanoscale magnetometry with NV centers in diamond

Published online by Cambridge University Press:  06 February 2013

Sungkun Hong
Affiliation:
School of Engineering and Applied Sciences, Harvard University; shong@seas.harvard.edu
Michael S. Grinolds
Affiliation:
Department of Physics, Harvard University; grinolds@fas.harvard.edu
Linh M. Pham
Affiliation:
School of Engineering and Applied Sciences, Harvard University; mylinh@seas.harvard.edu
David Le Sage
Affiliation:
Harvard-Smithsonian Center for Astrophysics; dlesage@cfa.harvard.edu
Lan Luan
Affiliation:
Harvard University; lluan@physics.harvard.edu
Ronald L. Walsworth
Affiliation:
Department of Physics, Harvard University; rwalsworth@cfa.harvard.edu
Amir Yacoby
Affiliation:
Harvard University; yacoby@physics.harvard.edu
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Abstract

Nitrogen-vacancy (NV) color centers in diamond are currently considered excellent solid-state magnetic field sensors. Their long coherence times at room temperature and their atomic size allow for achieving both high magnetic field sensitivity and nanoscale spatial resolution in ambient conditions. This article reviews recent progress in magnetic field imaging with NV centers. We focus on two topics: scanning probe techniques with single NV centers and their application in the imaging of nanoscale magnetic structures, as well as recent development of magnetometers with ensembles of NV centers, which image magnetic fields at micron-length scales with extremely high sensitivities.

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Type
Research Article
Copyright
Copyright © Materials Research Society 2013 

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