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Magnetization Directions of Individual Nanoparticles
Abstract
The magnetization directions of individual monodomain nanoparticles as small as 5 nanometers in diameter are determined using the Foucault method of Lorentz microscopy. A model is developed to explain the images and diffraction patterns of samarium cobalt nanoparticles as a function of the aperture shift direction. Thermally induced changes in the magnetization direction of superparamagnetic magnetite nanoparticles were observed but with a much slower rate than expected, due to surface anisotropy. When the time scale for magnetization reversal is much shorter than the data acquisition time, as in carbon-coated iron cobalt alloy nanoparticles, the images show an average of such thermally induced changes.
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Cited by
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
Sun, S., Murray, C. B., Weller, D., Folks, L., & Moser, A. (2000) · Science · doi:10.1126/science.287.5460.1989 · Cited by 6,137
Moriarty, P. (2001) · Reports on Progress in Physics · doi:10.1088/0034-4885/64/3/201 · Cited by 785
Ali, A., Shah, T., Ullah, R., Zhou, P., Guo, M., Ovais, M., Tan, Z., & Rui, Y. (2021) · Frontiers in Chemistry · doi:10.3389/fchem.2021.629054 · Cited by 650
Multigram Scale Synthesis and Characterization of Monodisperse Tetragonal Zirconia Nanocrystals
Joo, J., Yu, T., Kim, Y. W., Park, H. M., Wu, F., Zhang, J. Z., & Hyeon, T. (2003) · Journal of the American Chemical Society · doi:10.1021/ja034258b · Cited by 412
Influence of ligand structure on the stability and oxidation of copper nanoparticles
Kanninen, P., Johans, C., Merta, J., & Kontturi, K. (2008) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2007.09.069 · Cited by 289
Metadata
- Authors
- Majetich, S. A., & Jin, Y.
- Venue
- Science
- Published
- 1999-04-16
- Volume
- 284
- Issue
- 5413
- Pages
- 470-473
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1977598779
- Cited by
- 229
- References
- 0
- FWCI
- 6.66
- Type
- journal article
- Language
- en
- Open access
- closed
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