| Автор | J B Sousa |
| Автор | M M Amado |
| Автор | R P Pinto |
| Автор | M A Salgueiro |
| Автор | M E Braga |
| Автор | K H J Buschow |
| Дата выпуска | 1991-06-03 |
| dc.description | Accurate measurements of the electrical resistivity ( rho ) and its temperature derivative (d rho /dT) in the ferromagnet Y<sub>2</sub>Fe<sub>14</sub>B have been made from 4-750 K, and the results have been compared with those previously obtained for Nd<sub>2</sub>Fe<sub>14</sub>B. In both cases rho (T) increases rapidly at low temperatures, approaching quasi-saturation well below the Curie point (T<sub>c</sub>). The weak resistivity singularity near T<sub>c</sub> is anomalous, giving negative d rho /dT values. Small humps also occur in rho (T) just below T<sub>c</sub>. The critical analysis of these results indicates that the low-temperature anomaly is likely to be associated with spin-fluctuation effects, whereas the hump effects below T<sub>c</sub> are related to the giant Invar effect in these compound. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Anomalous behaviour of the electrical resistivity of Y<sub>2</sub>Fe<sub>14</sub>B |
| Тип | paper |
| DOI | 10.1088/0953-8984/3/22/023 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 3 |
| Первая страница | 4119 |
| Последняя страница | 4123 |
| Аффилиация | J B Sousa; Centro de Fisica, Porto Univ., Portugal |
| Аффилиация | M M Amado; Centro de Fisica, Porto Univ., Portugal |
| Аффилиация | R P Pinto; Centro de Fisica, Porto Univ., Portugal |
| Аффилиация | M A Salgueiro; Centro de Fisica, Porto Univ., Portugal |
| Аффилиация | M E Braga; Centro de Fisica, Porto Univ., Portugal |
| Аффилиация | K H J Buschow; Centro de Fisica, Porto Univ., Portugal |
| Выпуск | 22 |
