Volume 73, Number 4, February 2006
|Page(s)||567 - 573|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||13 January 2006|
Divergence of the relaxation time in the vicinity of the ferroelectric charge-ordered phase transition in
Institute of Radio-Engineering and Electronics, Russian Academy of Sciences Mokhovaya 11, 103907 Moscow, Russia
2 Centre de Recherches sur les Très Basses Températures, CNRS 25 rue des Martyrs, BP 166, 38042 Grenoble cedex 9, France
3 Laboratoire de Chimie Structurale Organique, Université de Montpellier 34095 Montpellier cedex, France
Accepted: 3 January 2006
A sharp maximum in the temperature dependence of the relaxation time obtained from low-frequency permittivity measurements is found in the quasi-one-dimensional conductor at a temperature of 101. This maximum is associated with the second-order phase transition into a charge-ordered state of Wigner type. The character of relaxation processes above and below this phase transition is discussed.
PACS: 71.30.+h – Metal-insulator transitions and other electronic transitions / 71.45.Lr – Charge-density-wave systems / 77.80.Bh – Phase transitions and Curie point
© EDP Sciences, 2006
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