Frequency-induced negative magnetic susceptibility in epoxy/magnetite nanocomposites

Abstract The epoxy/magnetite nanocomposites express superparamagnetism under a static or low-frequency electromagnetic field. At the microwave frequency, said the X-band, the nanocomposites reveal an unexpected diamagnetism. To explain the intriguing phenomenon, we revisit the Debye relaxation law w...

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Bibliographic Details
Main Authors: Che-Hao Chang, Shih-Chieh Su, Tsun-Hsu Chang, Ching-Ray Chang
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-82590-w