Abstract
4f74f6+e charge fluctuations (inferered from Eu151 Mössbauer spectroscopy) in EuPd2Si2 show a strong nonlinear thermal dependence when compared to those observed in dilute Eu in LaPd2Si2. This nonlinear behavior is well described by extending the interconfigurational fluctuation model to include a cooperative intersite coupling of the interconfigurational fluctuation excitation energy to the 4f occupation number. Eu nuclear vibrational damping occurs in the region of greatest charge instability.
Original language | English (US) |
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Pages (from-to) | 826-829 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 48 |
Issue number | 12 |
DOIs | |
State | Published - 1982 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)