T.N. Theis, J.R. Kirtley, et al.
Physical Review Letters
Paper
Direct investigation of superparamagnetism in Co nanoparticle films
Abstract
Supermagnetism in films of self-assembled cobalt particles was directly probed by measuring the spontaneous magnetic noise arising from these films as a function of temperature. As a result, the average anisotropy energy and width were determined, and the entire magnetic anisotropy energy distribution extracted.
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