Abstract
We examined the temperature dependence of the Eu valence in La 0.9Eu0.1Ni2(Si1-xGe x)2 by means of magnetic susceptibility measurements and X-ray absorption spectroscopy. It was found that the Eu ions are in the intermediate valence state for 0.2 < x < 0.8 and the Eu valence gradually varies with temperature. The results are compared with those of the concentrated EuNi2(Si1-yGey)2 compounds. The main factor in determining the Eu valence in both dilute and concentrated alloys is discussed.
Original language | English |
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Pages (from-to) | 2604-2607 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 72 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 1 2003 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)