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Particle Size Dependence of Coercivity and Remanence of Single-Domain Particles
Abstract
The coercive force and remanence of essentially spherical iron and iron-cobalt alloy particles with diameters from 20 to 3000 Å have been measured at 4°, 76°, and 207°K and compared to the theoretically predicted behavior. The remanence shows a broad, plateau-like maximum while the coercive force has a rather sharp maximum. The maximum of the coercive force occurs at a much larger particle diameter than the maximum of the remanence. It is shown that these essential characteristics follow from the theory. Deviations from theory are seen in the smaller size range and can be accounted for by the distribution of particle sizes. A general treatment of the coercive force of mixtures of thermally stable, high coercive force particles with superparamagnetic and multidomain particles is given.
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Cited by
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Roberts, A. P., Cui, Y., & Verosub, K. L. (1995) · Journal of Geophysical Research: Solid Earth · doi:10.1029/95jb00672 · Cited by 601
Organic Phase Syntheses of Magnetic Nanoparticles and Their Applications
Wu, L., Mendoza-Garcia, A., Li, Q., & Sun, S. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00687 · Cited by 601
Hard magnetic properties in nanoflake van der Waals Fe3GeTe2
Tan, C., Lee, J., Jung, S.-G., Park, T., Albarakati, S., Partridge, J., Field, M. R., McCulloch, D. G., Wang, L., & Lee, C. (2018) · Nature Communications · doi:10.1038/s41467-018-04018-w · Cited by 426
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Metadata
- Authors
- Kneller, E. F., & Luborsky, F. E.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1963-03-01
- Volume
- 34
- Issue
- 3
- Pages
- 656-658
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2089340480
- Cited by
- 651
- References
- 0
- FWCI
- 2.66
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kneller, E. F., & Luborsky, F. E. (1963). Particle Size Dependence of Coercivity and Remanence of Single-Domain Particles. Journal of Applied Physics. https://doi.org/10.1063/1.1729324
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