Highly Conducting Quasi-One-Dimensional Organic Crystals by Esther Conwell (Eds.)

By Esther Conwell (Eds.)

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Rev. 2-trichloroethane \ / c ’ CI-C-C-H CI H/ Saito, Les Arcs, 1215; Shibaeva, Abano Terme C , 361 26 (sc) h 3 n EK n -35 (SC, both) Henning, Abano Terme C, 337; Shibaeva, Abano Terme C. 361 s P w n 5 m 4 -I O - ~ (SC) Schurnaker, IBM Research Report RJ 3783 (43480), 2/10/83; Schumaker, Les Arcs, 1139 5 w w Name Description (BEDT-TTF)Q(CN)z Q(CN)2: Structure Conductivity References (1) -20 (sc) (2) -5u (5c) Schumaker, IBM Research Report RJ 3783 (43480),2/10/83; Schumaker, Les Arc. 3 x lo-’ (pw) Lau, Boulder F, 131 ?

Mol. Cryst. Liq. Cryst. 121, 79. Cohen, M. , Coleman, L. , Garito, A. , and Heeger, A . J. (1974). Phys. Rev. B 10, 1288. Cohen, M. , and Heeger, A. J. (1977). Phys. Rev. B 16, 688. Coleman, L. , Cohen, M. , Sandman, D. , Yamagishi, F. , Garito, A. , and Heeger, A. J. (1973). Solid State Commun. 12, 1125. Conwell, E. M. (1977). Phys. Rev. Lett. 39, 777. Conwell, E. , and Banik, N. C. (1981a). Solid State Commun. 39, 411. Conwell, E. , and Banik, N. C. (1981b). Phys. Rev. B 24, 4883. Cooper, J. R.

1/T is not as straightforward. It was suggested that it is due to thermal activation of defects, specifically phase kinks corresponding to compressions (@-particles) or rarefactions (anti @-particles), of the charge-density wave (Cohen and Heeger, 1977). These defects would be charged and mobile, thus capable of contributing to current. The existence of such defects was predicted by Rice et al. (1976), although the expected activation energy was considerably greater than the 14 K obtained from the low-temperature slope.

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