| Автор | A Krimmel |
| Автор | J Hemberger |
| Автор | C Kegler |
| Автор | M Nicklas |
| Автор | A Engelmayer |
| Автор | G Knebel |
| Автор | V Fritsch |
| Автор | M Reehuis |
| Автор | M Brando |
| Автор | A Loidl |
| Дата выпуска | 1999-09-13 |
| dc.description | We have studied the magnetic behaviour of PrAu<sub>2</sub>(Si<sub>1-x</sub>Ge<sub>x</sub>)<sub>2</sub> by means of magnetic susceptibility, resistivity, and heat capacity measurements, and x-ray and neutron powder diffraction. All compounds are isostructural and crystallize in the well known ThCr<sub>2</sub>Si<sub>2</sub>-type structure. PrAu<sub>2</sub>Si<sub>2</sub> shows the characteristic features of a canonical spin glass with a freezing temperature of T<sub>F</sub> = 3 K. Completely unexpectedly, on introducing/increasing the atomic disorder by alloying with Ge, the spin-glass transition is suppressed as is first evident from a slight decrease of the freezing temperature T<sub>F</sub> up to x = 0.10. Long-range magnetic order sets in for x0.12. Within the range 0.15 x1, all compounds show the same simple AF-I-type antiferromagnetic structure with a monotonic increase of both the Néel temperature and the ordered magnetic moment for increasing Ge concentration. The magnetic phase diagram of PrAu<sub>2</sub>(Si<sub>1-x</sub>Ge<sub>x</sub>)<sub>2</sub> is explained by the presence of weak disorder at a constant level at the Au sites. Clear indications of crystal-field effects have been observed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The evolution from long-range magnetic order to spin-glass behaviour in PrAu<sub>2</sub>(Si<sub>1-x</sub>Ge<sub>x</sub>)<sub>2</sub> |
| Тип | paper |
| DOI | 10.1088/0953-8984/11/36/315 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 11 |
| Первая страница | 6991 |
| Последняя страница | 7003 |
| Аффилиация | A Krimmel; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | J Hemberger; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | C Kegler; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | M Nicklas; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | A Engelmayer; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | G Knebel; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | V Fritsch; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | M Reehuis; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | M Brando; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Аффилиация | A Loidl; Experimentalphysik V, Elektronische Korrelationen und Magnetismus, Institut für Physik, Universität Augsburg, D-86159 Augsburg, Germany |
| Выпуск | 36 |
