Premium
Resonance Raman and infrared studies of the organic superconductor k ‐(MDT‐TTF) 2 AuI 2 in the normal state
Author(s) -
Zambounis J. S.,
Patsis A. P.,
Kamitsos E. I.,
Mayer C. W.,
Papavassiliou G. C.
Publication year - 1995
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.1250260104
Subject(s) - raman spectroscopy , infrared , chemistry , resonance (particle physics) , wavenumber , analytical chemistry (journal) , molecular vibration , infrared spectroscopy , excitation , superconductivity , organic superconductor , normal mode , ion , spectral line , molecular physics , absorption (acoustics) , nuclear magnetic resonance , vibration , materials science , atomic physics , condensed matter physics , optics , physics , organic chemistry , quantum mechanics , astronomy , composite material , chromatography
Resonance Raman and infrared spectra of the organic superconductor K ‐(MDT‐TTF) 2 AuI 2 were measured to identify the vibrational modes which exhibit strong electron—molecular vibration (EMV) coupling. Excitation wave‐length dependence of certain Raman modes was observed and is discussed in connection with the UV—visible absorption spectrum. Raman spectra measured at 77 K revealed a significant enhancement of a low‐wavenumber mode attributed to the organic part, while the symmetric AuI 2 − anion was found to be unaffected at low temperatures.