| Автор | H de Graaf |
| Автор | R C Thiel |
| Автор | K H J Buschow |
| Дата выпуска | 1982-06-01 |
| dc.description | The magnetic and crystallographic properties of GdCu<sub>2</sub> and its ternary hydride GdCu<sub>2</sub>H<sub>x</sub> have been investigated. Upon hydrogen absorption the crystal structure of GdCu<sub>2</sub> changes from orthorhombic (CeCu<sub>2</sub>-type) to tetragonal (MoSi<sub>2</sub>-type), accompanied by a lattice expansion of 29%. The uncharged intermetallic compound GdCu<sub>2</sub> orders antiferromagnetically (T<sub>N</sub>=37K). After H<sub>2</sub> absorption it becomes ferromagnetic (T<sub>C</sub>=45K). There is a strong increase in the asymptotic Curie temperature (from theta <sub>p</sub>=7K to theta <sub>p</sub>=57K). Studies of the <sup>155</sup>Gd Mossbauer effect in the uncharged and charged compounds show that the H<sub>2</sub> absorption leads to an increase in isomer shift and in the absolute value of the hyperfine field at 4.2K. Both changes have been discussed in terms of a changing conduction electron concentration. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Magnetic properties and <sup>155</sup>Gd Mossbauer effect in GdCu<sub>2</sub> and its ternary hydride |
| Тип | paper |
| DOI | 10.1088/0305-4608/12/6/022 |
| Print ISSN | 0305-4608 |
| Журнал | Journal of Physics F: Metal Physics |
| Том | 12 |
| Первая страница | 1239 |
| Последняя страница | 1245 |
| Аффилиация | H de Graaf; Kamerlingh Onnes Lab., RA Leiden, Netherlands |
| Аффилиация | R C Thiel; Kamerlingh Onnes Lab., RA Leiden, Netherlands |
| Аффилиация | K H J Buschow; Kamerlingh Onnes Lab., RA Leiden, Netherlands |
| Выпуск | 6 |
