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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
New nanoparticles are provided which may have blocking temperatures exceeding 570 K even for particles as small as 8 nm in size. First principles theoretical investigations show that the new behavior is rooted in the giant magnetocrystalline anisotropies due to controlled mixing between carbon p-states and cobalt d-states. Furthermore, assemblies of the new nanoparticles may provide rare earth free permanent magnets having magnetic properties which rival those of rare earth permanent magnets.
Carpenter, Everett (Mechanicsville, VA), El-Gendy, Ahmed A. (Richmond, VA), Khanna, Shiv (Richmond, VA)
Virginia Commonwealth University (Richmond VA)
14/ 227,283
March 27, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Grant No. 0472-1574 awarded by the Advanced Research Projects Agency (ARPA), MRI Grants No. CHE0820945 and No. CHE0922582 awarded by National Science Foundation, and Grant No. 0472-1572 awarded by the Advanced Research Projects Agency-Energy (ARPA-e) of the U.S. Department of Energy. The government has certain rights in the invention.