Ferroelectric phase transition in Langmuir-Blodgett films of copper phthalocyanine

Authors
Yudin, SG Blinov, LM Petukhova, NN Palto, SP
Citation
Sg. Yudin et al., Ferroelectric phase transition in Langmuir-Blodgett films of copper phthalocyanine, JETP LETTER, 70(9), 1999, pp. 633-640
Citations number
15
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
70
Issue
9
Year of publication
1999
Pages
633 - 640
Database
ISI
SICI code
0021-3640(19991110)70:9<633:FPTILF>2.0.ZU;2-A
Abstract
A ferroelectric phase transition is observed in Langmuir-Blodgett films pre pared from substituted copper phthalocyanine molecules. The linear and nonl inear dielectric properties of the films and the switching of their spontan eous polarization are investigated in the temperature range of the phase tr ansition. The observed features can be explained by the Landau-Ginzburg mod el of a first-order phase transition. (C) 1999 American Institute of Physic s. [S0021-3640(99)01321-3].