Premium
Raman spectroscopy of low‐temperature phases of RbAg 4 I 5
Author(s) -
Shawabkeh A.,
Scott J. F.
Publication year - 1989
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.1250200414
Subject(s) - raman spectroscopy , infrared , analytical chemistry (journal) , phase (matter) , chemistry , infrared spectroscopy , line (geometry) , materials science , optics , physics , mathematics , geometry , organic chemistry , chromatography
Raman spectra were obtained of single crystals of RbAg 4 I 5 in an effort to confirm independently the far‐infrared results of Volkov and co‐workers that structural phase transitions occur at 44 and 30 K. The present results, that a strong ‘extra’ line occurs below 44 K at 12 cm −1 , is in agreement with their measured value, confirming that the phase just below 44 K is non‐centrosymmetric, in agreement with their proposed C 3 point group.