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Infared Spectra of the Neutron Irradiated Quasi‐One‐Dimensional Charge Transfer Salts TEA (TCNQ) 2 and QN (TCNQ) 2
Author(s) -
Kamarás K.,
Holczer K.,
Jánossy A.
Publication year - 1980
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.2221020204
Subject(s) - chemistry , irradiation , spectral line , infrared spectroscopy , infrared , neutron , molecular vibration , charge (physics) , coherence (philosophical gambling strategy) , molecule , atomic physics , molecular physics , physics , optics , organic chemistry , nuclear physics , quantum mechanics , astronomy
The infrared vibrational spectra of the organic quasi‐one‐dimensional charge transfer salts quinolinium (TCNQ) 2 , and triethylammonium (TCNQ) 2 change markedly upon irradiation by high energy neutrons. A reduction of the intensity of some totally symmetric modes and an increase of visibility of other modes are observed in the irradiated samples. The results are discussed in the framework of the electron‐vibrational interaction theory. The doses required to obtain observable changes are relatively high and point rather to a model of simple electron coupled vibrational modes extended over a few molecules than to phase oscillations of a collective state with a long coherence length.