Abstract
The magnetisation curves of two ferrofluids have been measured in the temperature range 3.6-300 K. The measurements show superparamagnetic behaviour above the freezing points of the fluids as demonstrated by the superposition of magnetization curves measured at different temperatures when plotted versus H/T. In the solid, however, superposition is not observed since anisotropy barriers are presented. A theory describing this behaviour is presented.
| Original language | English |
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| Pages (from-to) | 129-133 |
| Number of pages | 5 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 122 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 1993 |