Premium
Rare‐earth titanates and stannates of pyrochlore structure; vibrational spectra and force fields
Author(s) -
Vandenborre M. T.,
Husson E.,
Chatry J. P.,
Michel D.
Publication year - 1983
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250140202
Subject(s) - pyrochlore , raman spectroscopy , valence (chemistry) , spectral line , materials science , rare earth , absorption spectroscopy , crystallography , analytical chemistry (journal) , chemistry , mineralogy , physics , optics , organic chemistry , chromatography , astronomy , phase (matter)
Abstract Infrared absorption and polarized Raman spectra of rare‐earth titanates of pyrochlore structure Ln 2 Ti 2 O 7 (Ln = Sm, Gd, Yb; Y) and Ln 2 Sn 2 O 7 (Ln = La, Sm, Gd, Yb, Lu; Y) have been recorded. A valence force field calculation clearly supports the assignment of the frequencies. A comparison of the results with those of homologous zirconates and hafnates is presented.