Temperature relaxation of a superferromagnetic state in dispersed hematite
Abstract
The shape sensitivity of a dispersed hematite Mössbauer spectrum to the way of particle packing is detected experimentally. This effect is shown to result from reversible particle transition from superparamagnetic to superferromagnetic state due to correlation bounds arising between magnetization vectors of neighboring particles.
- Publication:
-
Journal of Magnetism and Magnetic Materials
- Pub Date:
- October 1992
- DOI:
- 10.1016/0304-8853(92)90118-8
- Bibcode:
- 1992JMMM..116..372P