RAMAN-SCATTERING STUDY OF CRYSTAL-FIELD EXCITATIONS IN PR2CUO4

Authors
SANJURJO JA RETTORI C OSEROFF S FISK Z
Citation
Ja. Sanjurjo et al., RAMAN-SCATTERING STUDY OF CRYSTAL-FIELD EXCITATIONS IN PR2CUO4, Physical review. B, Condensed matter, 49(6), 1994, pp. 4391-4394
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
49
Issue
6
Year of publication
1994
Pages
4391 - 4394
Database
ISI
SICI code
0163-1829(1994)49:6<4391:RSOCEI>2.0.ZU;2-K
Abstract
Crystal-field transitions within the H-3(4) multiplet of Pr3+ in Pr2Cu O4 were studied by Raman scattering as a function of temperature. We o bserved three crystal-field excitations at 156, 540, and 675 cm-1. The peak at 156 cm-1, assigned by other authors to the lowest E(g) phonon mode, shows a thermal broadening of the linewidth, which is the signa ture for acoustic-phonon-relaxation processes between crystal-field le vels. Our results are in excellent agreement with recent inelastic neu tron-scattering experiments in Pr2CuO4.