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Resonance Raman spectrum of the I−3 ion and the phase transition in the organic metal TMAITCNQ

✍ Scribed by A.D. Bandrauk; K.D. Truong; C. Carlone; S. Jandl

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
406 KB
Volume
95
Category
Article
ISSN
0009-2614

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✦ Synopsis

Rcsonrmce Ramman spectm of single ctyfals of the organic metal ThlAlTCNQ eshibit strong resonances from the 1; ions. Overtones up to u = 5 were readily observed. Temperature-dependent measurements reveal a sharp discontinuity of the fundrtmcntrd intensity and of the linewidth of the fiirt overtone at 150 K;. These results indicate that the iodine ions are dircrf@ involved in the semiconductor to semiconductor phase transition which is known to occur at this temperature. ' ('ontribution from GRSD (Groupe de Recherches sur les S&nicondu~tcurs r't Dit+crriques).

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