A dielectric study of three chiral liquid crystals presenting SmCFI* phases

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Sarmento, S (Author) Other; Carvalho, PS (Author) FCUP; Chaves, MR (Author) FCUP; Pinto, F (Author) Other; Nguyen, HT (Author) Other

Journal

Title: Liquid Crystals

Vol. 28

Pages: 673-690

ISSN: 0267-8292

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 5 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-000-VQA

DOI: 10.1080/02678290010028744

Abstract (EN): We have performed a detailed dielectric study of three compounds presenting ferrielectric phases over large temperature intervals. The relaxation processes detected in the SmCF1* phases are highly polidispersive. We have repeatedly observed the surface layer mode described by Bourny er al. [1] and a weak ferrielectric mode, whose relaxation frequency is always higher on heating than on cooling runs. The temperature interval where SmCF1* phases occur is apparently independent of cooling/heating rates and of the history of the sample.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18