High strain magnetostriction in a ferromagnet-polymer composite

Aaron Hamann; E. Dan Dahlberg

doi:10.1063/1.4977734

High strain magnetostriction in a ferromagnet-polymer composite

Aaron Hamann, E. Dan Dahlberg

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A magnetostrictive composite material exhibiting the capacity for large magnetostrictive strains was created by suspending magnetic wires in a soft polymer matrix. Magnetostrictive strains as large as 20% were found in an applied field of 600 Oe for this proof of concept composite. Our analysis indicates that reversible strains of over 6% are reasonable for this specific composite. The large values of magnetostriction are due to the mechanical rotation of the wires in the polymer matrix.

Original language	English (US)
Article number	091906
Journal	Applied Physics Letters
Volume	110
Issue number	9
DOIs	https://doi.org/10.1063/1.4977734
State	Published - Feb 27 2017

Bibliographical note

Funding Information:
The authors acknowledge useful conversations with Professor Bethanie Stadler and Professor Richard James. We also wish to thank Professor James for suggesting revisions to the manuscript. One of the authors, A.H., thanks the UROP Program of the University of Minnesota for support. The authors gratefully acknowledge support of this research by the National Science Foundation under Grant No. DMR 1609782.

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© 2017 Author(s).

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High strain magnetostriction in a ferromagnet-polymer composite

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