Abstract
The influence of dipolar interactions in a frozen ferrofluid
consisting of maghemite particles has been studied by Mossbauer
spectroscopy in the temperature range from 60 to 200 K. Four
samples with volume concentrations ranging from 0.3 to 17.7 % have
been investigated. The superparamagnetic blocking temperature
decreases when increasing the volume concentration of maghemite
particles, indicating that the relaxation time decreases with
increasing interaction strength. These results are discussed in
the light of computer simulations of the superparamagnetic
relaxation time as a function of the dipolar interaction strength.
| Original language | English |
|---|---|
| Title of host publication | Proc. ICAME'95 |
| Place of Publication | Bologna |
| Publisher | SIF |
| Publication date | 1996 |
| Pages | 524-532 |
| Publication status | Published - 1996 |
| Event | International Conference on the Applications of the Mössbauer Effect - Rimini, Italy Duration: 10 Sept 1995 → 16 Sept 1995 |
Conference
| Conference | International Conference on the Applications of the Mössbauer Effect |
|---|---|
| Country/Territory | Italy |
| City | Rimini |
| Period | 10/09/1995 → 16/09/1995 |