Автор |
D P F Hurley |
Автор |
J M D Coey |
Дата выпуска |
1992-06-22 |
dc.description |
A series of tetragonal rare-earth-iron intermetallic carbides R(Fe<sub>11</sub>Ti)C<sub>1- delta </sub> of rare-earths from Nd to Lu have been prepared by reaction of intermetallic powders with butane (C<sub>4</sub>H<sub>10</sub>) at temperatures between 480 degrees C and 520 degrees C. On average, the unit cell volume increases upon carbonation by 1.8% across the series. Curie temperatures increase by about 160 K. Values of magnetization at room temperature and 4.2 K are reported. All compounds were found to have easy-axis anisotropy at room temperature, with the exception of Sm which is easy plane. Magnetization curves of aligned samples of the solid solution series (Y<sub>1-x</sub>Nd<sub>x</sub>)(Fe<sub>11</sub>Ti)C<sub>1- delta </sub> give an anisotropy field for the Nd(Fe<sub>11</sub>Ti)C<sub>1- delta </sub> compound of 17(2) T at 4.2 K, and 6(1) T at room temperature. Structural effects of interstitial modification of the intermetallic compounds are discussed, as are the possibilities of introducing interstitial atoms other than H, C and N into these types of alloys via gas-phase reactions. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Gas-phase interstitially modified intermetallics R(Fe<sub>11</sub>Ti)Z<sub>1- delta </sub>. I. Magnetic properties of the series R(Fe<sub>11</sub>Ti)C<sub>1- delta </sub>: R=Y, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu |
Тип |
paper |
DOI |
10.1088/0953-8984/4/25/010 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
5573 |
Последняя страница |
5584 |
Аффилиация |
D P F Hurley; Dept. of Pure & Appl. Phy., Trinity Coll., Dublin, Ireland |
Аффилиация |
J M D Coey; Dept. of Pure & Appl. Phy., Trinity Coll., Dublin, Ireland |
Выпуск |
25 |