Abstract
In order to understand spin freezing properties, ac-susceptibility χac and relaxation of thermoremanent magnetization (TRM) were measured on an Ising spin glass Fe0 05TiS2 in zero and non-zero fields. Analysis of χac above the spin glass freezing temperature shows that a rectangular distribution of spin relaxation times is appropriate and the temperature dependence of the average spin relaxation time follows the power law. The waiting time effects on the relaxation of TRM below the freezing temperature can be interpreted by a hierarchical many-valley structure. These results are consistent with Sherrington-Kirkpatrick model's prediction that the spin glass freezing is a phase transition in both zero and non-zero fields.
| Original language | English |
|---|---|
| Pages (from-to) | 1474-1485 |
| Number of pages | 12 |
| Journal | journal of the physical society of japan |
| Volume | 63 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1994 Jan 1 |
| Externally published | Yes |
Keywords
- FeTiS
- Ising spin glass
- ac-susceptibility
- hierarchical many valley structure
- power law
- relaxation time
- thermoremanent magnetization
ASJC Scopus subject areas
- Physics and Astronomy(all)