Synthesis and characterization of CoFe2O4 nanoparticles with high coercivity
Abstract
Single crystalline CoFe2O4 nanoparticles with high coercivity were prepared via a one-step hydrothermal method. The shape and size of the nanocrystals (in the range of 20–100 nm) can be controlled by varying synthesis parameters such as the concentration of NaOH and CTAB. X-ray diffraction and Raman spectra analysis confirmed that all the as-synthesized nanoparticles have a face centered cubic spinel crystal structure. HRTEM observation of particles shows interlayer spacing 0.48 nm of (111) lattice planes. A coercive force up to 5.0 kOe and saturation magnetization of 73 emu/g was achieved at room temperature for the 40 nm CoFe2O4 nanoparticles.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 01, 2015
- Source ID
- 10.1063/1.4916544
Entities
People
- J. Ping Liu
- Kevin Elkins
- Kinjal Gandha
- Narayan Poudyal
Organizations
- Army Research Office
- United States Department of Defense
- University of Texas at Arlington