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Temperature Dependence of the Infrared Absorption Spectrum of P 4 S 3
Author(s) -
Chattopadhyay T.,
Von Schnering H. G.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221080128
Subject(s) - infrared , infrared spectroscopy , absorption (acoustics) , materials science , phase (matter) , mode (computer interface) , absorption spectroscopy , analytical chemistry (journal) , chemistry , optics , physics , organic chemistry , computer science , composite material , operating system , chromatography
The temperature dependence of the infrared absorption spectrum of P 4 S 3 is investigated from 10 to 360 K. The internal mode frequencies have negligible temperature dependence whereas the external mode frequencies show a relatively strong temperature dependence which is almost linear. At the phase transition temperature 314 K the sharp absorption peaks due to the low‐frequency external mode disappear leaving relatively flat features characteristic of the plastic phase.