Abstract
Magnetization and specific heat measurements were carried out on pseudo-binary Pr1-xTbxNi (x = 0.0, 0.1) and Nd1-xTbxNi (x = 0.0, 0.05, 0.1, 0.15) single crystals. The magnetic transition temperatures for Pr1-xTbxNi increased with x, whereas those for Nd1-xTbxNi decreased slightly as x increased. The effective magnetic moments, deduced from the temperature dependence of susceptibility, increased with x for both systems. The saturation magnetizations observed at the magnetically easy directions for all samples suggest that the magnetic coupling between the Pr (or Nd) and Tb moments is antiferromagnetic. A noticeable increase in magnetization in higher external field, onset at 5 T, is observed for Pr0.9Tb0.1Ni and indicates that there is a rearrangement of the magnetic moments. Calculations of the crystal electric field effect of Pr and Tb in Pr1-xTbxNi were carried out using a simple point-charge model.
Original language | English |
---|---|
Pages (from-to) | 5-10 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 487 |
Issue number | 1-2 |
DOIs | |
State | Published - 2009/11/13 |
Keywords
- Anisotropy
- Crystal growth
- Heat capacity
- Magnetically ordered materials
- Magnetization
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry