Spectroscopic defect imaging in magnetic nanostructure arrays

Published: July 25, 2012


Han-Jong H. Chia, Feng Guo, Lyubov Belova, Robert D. McMichael


We report a demonstration of spectroscopic defect imaging in an array of ferromagnetic structures using ferromagnetic resonance force microscopy (FMRFM). The arrray of 200 nm diameter circular dots includes a single oval-shaped “defect.” The technique resolves not only intentional differences in resonant field between the dots and the oval, but also differences between nominally identical circular dots in the array.
Citation: Applied Physics Letters
Volume: 101
Issue: 4
Pub Type: Journals

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Ferromagnetic resonance, nanomagnetics, magnetic microscope
Created July 25, 2012, Updated February 19, 2017