X-ray diffuse scattering study of superstructure formation in tetramethyltetraselenafulvalenium perrhenate (TMTSF)2ReO4 and nitrate (TMTSF) 2NO3
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چکیده
2014 X-ray diffuse scattering studies of one dimensional conductors (TMTSF)2ReO4 and (TMTSF)2NO3 reveal the formation of low temperature superstructures which might involve an ordering of the counter ions ReO-4 and NO-3. The superstructure reflections are characterized by wave vectors q = (1/2, 1/2, 1/2) for the perrhenate and q = (1/2, 0, 0) for the nitrate, which double the unit cell volume in both cases. In (TMTSF)2ReO4 this phase transition coincides with the metal insulator transition observed at 180 K, whereas in (TMTSF)2NO3 it corresponds to a better conducting state observed below 41 K. J. Physique LETTRES 42 (1981) L-543 L-546 15 DÉCEMBRE 1981
منابع مشابه
Studies of Complex Systems in Condensed Matter Physics and Economics
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