Contact: Mark Esser
National Institute of Standards and Technology (NIST)
Caption: Trapped beneath the magnetic tip of a microscale cantilever, spin waves can be used to non-destructively measure the properties of magnetic materials and search for nanoscale defects, especially in multilayer magnetic systems like a typical hard drive, where defects could be buried beneath the surface.
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Related news release: Nanoscale magnetic media diagnostics by rippling spin waves