| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9803183 | Journal of Alloys and Compounds | 2005 | 5 Pages |
Abstract
The stronger magnetization in ferromagnetic YFe2H4 compared to YFe2 was explained by two antagonistic effects: (i) the lattice expansion due to hydrogen insertion which increases the magnetic moments MS at the Fe sites, (ii) the metal-hydrogen interaction which slightly reduces MS. In the hydride, the majority spin states of Fe are fully filled and the Fermi energy falls in a peak of the minority spin density of states. We found a small ferrimagnetic coupling of the 4d states of yttrium. Our results are in satisfactory agreement with experimental magnetic data.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
J.-C. Crivello, M. Gupta,