| Автор | J S Lord |
| Автор | J G M Armitage |
| Автор | P C Riedi |
| Автор | S F Matar |
| Автор | G Demazeau |
| Дата выпуска | 1994-02-28 |
| dc.description | The forced volume magnetostriction and the NMR of ferromagnetic Fe<sub>N</sub> and ferrimagnetic Mn<sub>4</sub>N have been measured in the ordered state. At 4.2 K the magnetization ( sigma ) per unit mass and the effective field (H<sub>I</sub>) at the nucleus of the Fe(I) site of Fe<sub>4</sub>N are found to change with pressure such that delta ln sigma / delta P approximately= delta ln mod H<sub>I</sub> mod / delta P<0, while for Mn<sub>4</sub>N delta ln sigma / delta P approximately=6 delta ln mod H<sub>I</sub> mod / delta P>0. The result for Mn<sub>4</sub>N is interpreted as showing that the magnitude of the small (negative) moment on the Mn(II) site decreases more rapidly under pressure than does the large Mn(I) moment. The value of delta ln mod H<sub>I</sub> mod / delta P for Mn<sub>4</sub>N was found to be a strong function of temperature such that delta lnT<sub>N</sub>/ delta P approximately=5.2 Mbar<sup>-1</sup>. An analysis of the Mn<sub>4</sub>N NMR data suggests that the discrepancy between the calculated (spin) and measured moment at the Mn(I) site may be due to a small orbital moment at that site. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The volume dependence of the magnetization and NMR of Fe<sub>4</sub>N and Mn<sub>4</sub>N |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/9/019 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 1779 |
| Последняя страница | 1790 |
| Аффилиация | J S Lord; Dept. of Phys. & Astron., St. Andrews Univ., UK |
| Аффилиация | J G M Armitage; Dept. of Phys. & Astron., St. Andrews Univ., UK |
| Аффилиация | P C Riedi; Dept. of Phys. & Astron., St. Andrews Univ., UK |
| Аффилиация | S F Matar; Dept. of Phys. & Astron., St. Andrews Univ., UK |
| Аффилиация | G Demazeau; Dept. of Phys. & Astron., St. Andrews Univ., UK |
| Выпуск | 9 |
