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Letter

Nature Physics 4, 399–403 (1 May 2008) | doi:10.1038/nphys912

Three-dimensional imaging of magnetic fields with polarized neutrons

Nikolay Kardjilov , Ingo Manke , Markus Strobl , Andr|[eacute]| Hilger , Wolfgang Treimer , Michael Meissner , Thomas Krist & John Banhart

Neutrons are highly sensitive to magnetic fields owing to their magnetic moment, whereas their charge neutrality enables them to penetrate even massive samples. The combination of these properties with radiographic and tomographic imaging enables a technique that is unique for investigations of macroscopic magnetic phenomena inside solid materials.