Nano-composite material consisting of Co2C and Co3C nanoparticles has recently been shown to exhibit unusually large coercivities and energy products. Experimental studies that can delineate the properties of individual phases have been undertaken and provide information on how the coercivities and the energy product change with the size and composition of the nanoparticles. The studies indicate that while both phases are magnetic, the Co3C has higher magnetization and coercivity compared to Co2C. Through first principles electronic structure studies using a GGA+U functional, we provide insight on the role of C intercalation on enhancing the magnetic anisotropy of the individual phases. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4733321]
Magnetic properties of Co2C and Co3C nanoparticles and their assemblies
Creators
Kyler J. Carroll - Virginia Commonwealth University
Zachary J. Huba - Virginia Commonwealth University
Steven R. Spurgeon - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA
Meichun Qian - Virginia Commonwealth University
Shiv N. Khanna - Virginia Commonwealth University
Daniel M. Hudgins - Virginia Commonwealth University
Mitra L. Taheri - Drexel University
Everett E. Carpenter - Virginia Commonwealth University
Publication Details
Applied physics letters, v 101(1)
Publisher
American Institute of Physics
Number of pages
5
Grant note
FA9550-09-1-0371 / Air Force Office of Scientific Research under AFOSR; United States Department of Defense; Air Force Office of Scientific Research (AFOSR)
NCC facilities at VCU
U.S. Department of Energy (ARPA-E); United States Department of Energy (DOE)
CHE0820945; CHE0922582 / NSF-MRI; National Science Foundation (NSF); NSF - Office of the Director (OD)
Resource Type
Journal article
Language
English
Web of Science ID
WOS:000306144800043
Scopus ID
2-s2.0-84863697867
Other Identifier
991019330797304721
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Collaboration types
Domestic collaboration
Web of Science research areas
Physics, Applied
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