Abstracts 2008

Abstract of Publication No. 591

R. Valiente, I. Hernández, F. Rodríguez, F. Aguado, H. U. Güdel and K. Krämer
High-pressure induced absorption line narrowing in Cs3Yb2Cl9
J. Phys. Conf. Ser. 121, 042002/1-5 (2008)      Full Text (PDF)      DOI-Link     

Abstract: In this paper we investigate the pressure dependence of the absorption spectrum of Cs3Yb3Cl9. The polarised absorption spectra enable us to assign the main transitions of Yb3+ in C3v from the complicated phonon-side band structure, and derive the corresponding structure. Special attention is paid on the pressure-induced line narrowing and associated blue shift of the most prominent absorption transition that corresponds to the high energy G4 G4 transition at 10668 cm-1 at ambient conditions. The unusual linewidth reduction with pressure is explained by a Debye-type model considering the different contributions to the linewidth.

Last modified: 13.12.11 by Gabriela Frei