Spectral-line-broadening study of the trivalent lanthanide-ion series. II. The variation of the electron-phonon coupling strength through the series

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.55.180· OSTI ID:435227

Ellens, A; Andres, H; ter Heerdt, M L; Wegh, R T; Meijerink, A; Blasse, G ^[1]

---

1. Debye Institute, Utrecht University, P.O. Box 80000, NL 3508 TA Utrecht (The Netherlands)

The variation of an electron-phonon coupling strength of lanthanide ions is evaluated by measuring the temperature-dependent line broadening of a large number of 4f transitions of nine lanthanide ions. The results show that the electron-phonon coupling strength derived from these line-broadening experiments is large in the beginning (Ce{sup 3+},Pr{sup 3+},Nd{sup 3+}) and the end (Er{sup 3+},Tm{sup 3+},Yb{sup 3+}) of the trivalent lanthanide-ion series, but small at the center (Eu{sup 3+},Gd{sup 3+},Tb{sup 3+}). This trend can qualitatively be explained by the lanthanide contraction and the shielding of the 4f electrons. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 435227
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 1 Vol. 55; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ELECTRON-PHONON COUPLING
ELECTRONIC STRUCTURE
FLUORINE COMPOUNDS
LINE BROADENING
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
MULTICHARGED IONS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
RARE EARTH ADDITIONS
TEMPERATURE DEPENDENCE
YTTRIUM COMPOUNDS
YTTRIUM FLUORIDES