| Автор | Masatsugu Suzuki |
| Автор | Itsuko S Suzuki |
| Автор | Toshiaki Enoki |
| Дата выпуска | 2000-02-21 |
| dc.description | The magnetic phase diagram of a diluted three-dimensional Ising antiferromagnet Ni<sub>c</sub>Mg<sub>1-c</sub>(OH)<sub>2</sub> is determined. It consists of a spin-glass phase for 0.1 < c < 0.5, a re-entrant spin-glass phase for 0.5 ≤ c ≤ 0.8 and an antiferromagnetic phase for 0.5 ≤ c ≤ 1. The dynamic aspect of the spin-glass phase and the re-entrant spin-glass phase is studied from the temperature, frequency and field dependence of dispersion χ´ and χ´´. The relaxation time for c = 0.25 and 0.8 diverges in accordance with a critical slowing down with a dynamic critical exponent x = 8.79 ± 2.44 for c = 0.25 and 10.1 ± 1.3 for c = 0.8. The re-entrant spin-glass phase at c = 0.5 and 0.6 may be a mixed phase of spin-glass phase and antiferromagnetic phase. The competition between ferromagnetic intraplanar and antiferromagnetic interplanar exchange interaction gives rise to spin-glass behaviour. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Spin-glass phase and re-entrant spin-glass phase in diluted three-dimensional Ising antiferromagnet Ni<sub>c</sub>Mg<sub>1-c</sub>(OH)<sub>2</sub> |
| Тип | paper |
| DOI | 10.1088/0953-8984/12/7/320 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 12 |
| Первая страница | 1377 |
| Последняя страница | 1397 |
| Выпуск | 7 |
