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Systems and methods for creation of conducting networks of magnetic particles through dynamic self-assembly process

United States Patent

January 25, 2011
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
Self-assembly of magnetic microparticles in AC magnetic fields. Excitation of the system by an AC magnetic field provides a variety of patterns that can be controlled by adjusting the frequency and the amplitude of the field. At low particle densities the low-frequency magnetic excitation favors cluster phase formation, while high frequency excitation favors chains and netlike structures. For denser configurations, an abrupt transition to the network phase was obtained.
Snezhko; Oleksiy (Woodridge, IL), Aronson; Igor (Darien, IL), Kwok; Wai-Kwong (Downers Grove, IL)
11/ 641,337
December 19, 2006
The United States Government has certain rights in this invention pursuant to Grant No. W-31-109-ENG-38 between the United States Department of Energy and The University of Chicago representing Argonne National Laboratories.