Numéro
J. Phys. IV France
Volume 03, Numéro C2, Juillet 1993
International Workshop on Electronic Crystals
ECRYS - 93
Page(s) C2-369 - C2-372
DOI http://dx.doi.org/10.1051/jp4:1993274
International Workshop on Electronic Crystals
ECRYS - 93

J. Phys. IV France 03 (1993) C2-369-C2-372

DOI: 10.1051/jp4:1993274

Interplay between disorder and quasi-regularity in CDW systems

I. BÂLDEA1, 2 and M. BADESCU3

1  Universität Ulm, Abteilung für Mathematische Physik, Oberer Eselsberg, Postfach 4066, 89069 Ulm/Donau, Germany
2  On leave from : Institute of Atomic Physics, IGSS, 76900 Bucharest-Màgurele, Romania
3  Passive Component Design, IPEE Electroarges, 12-14 Albesti Str., 0450 Curtea-de-Arges, Romania


Abstract
We develop here a microscopical model of quasi-regular impurity distribution driven by the CDW appropriate for highly mobile impurities or materials with fictitious CDW transition temperature. Thermal hysteresis effects at the CDW transition reported in the quasi-1D materials NbSe3 and Ta2NiSe7, could be interpreted in the framework of the present model. Possible connections with other (alloy, heavy-fermion) systems are also suggested.



© EDP Sciences 1993