Abstract
Ferromagnetic air-stable SmCo nanoparticles have been produced directly using a one-step chemical synthesis method. X-ray diffraction studies confirmed the formation of hexagonal SmCo5 as a dominant phase. High resolution transmission electron microscopy confirms the presence of uniform, anisotropic bladelike nanoparticles approximately 10 nm in width and 100 nm in length. Values of the intrinsic coercivity and the magnetization in the as-synthesized particles are 6.1 kOe and 40 emu/g at room temperature and 8.5 kOe and 44 emu/g at 10 K, respectively. This direct synthesis process is environmentally friendly and is readily scalable to large volume synthesis to meet the needs for the myriad of advanced permanent magnet applications.
Keywords
ferromagnetic air stable SmCo nanoparticles, direct chemical synthesis process, nanoblades, x-ray diffraction, SmCo5, intrinsic coercivity
Subject Categories
Nanoparticles, Electron microscopy, Magnetization
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
7-21-2008
Rights Information
Copyright 2008 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Chinnasamy, C. N.; Huang, J. Y.; Lewis, L. H.; Latha, B.; Vittoria, C.; and Harris, V. G., "Direct chemical synthesis of high coercivity air-stable SmCo nanoblades" (2008). Electrical and Computer Engineering Faculty Publications. Paper 33. http://hdl.handle.net/2047/d20002203
Figure 1
direct_chemical_synthesis_fig2.zip (2231 kB)
Figure 2
direct_chemical_synthesis_fig3.zip (185 kB)
Figure 3
direct_chemical_synthesis_erratum.pdf (489 kB)
Erratum
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Additional Files
direct_chemical_synthesis_fig1.zip (122 kB)Figure 1
direct_chemical_synthesis_fig2.zip (2231 kB)
Figure 2
direct_chemical_synthesis_fig3.zip (185 kB)
Figure 3
direct_chemical_synthesis_erratum.pdf (489 kB)
Erratum
Notes
The following article appeared in Applied Physics Letters 93, 032505 (2008). DOI: 10.1063/1.2963034 (http://dx.doi.org/10.1063/1.2963034).