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Chin. Phys. B, 2018, Vol. 27(10): 107701    DOI: 10.1088/1674-1056/27/10/107701
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Electro-optical properties and (E, T) phase diagram of fluorinated chiral smectic liquid crystals

R Zgueb, H Dhaouadi, T Othman
Université Tunis El-Manar, Faculté des Sciences de Tunis, Laboratoire de physique de la matiére molle et de modélisation électromagnétique(LP3ME), Campus Universitaire Farhat Hached 2092 Tunis Tunisie
Abstract  

Fluorinated smectic liquid crystals each with a biphenyl benzoate rigid core are investigated. Molecular structures of the studied compounds have difference only in fluorine position and the length of the carbon chain. Dielectric relaxation study and electro-optical measurements are carried out with the classical SSFLC geometry. The field-induced phase transitions are studied and the (E,T) phase diagram is established.

Keywords:  smectic liquid crystal      dielectric relaxation      electro-optical properties      phase transition      (E,T) phase diagram  
Received:  03 April 2018      Revised:  25 July 2018      Accepted manuscript online: 
PACS:  77.84.-s (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)  
  77.80.-e (Ferroelectricity and antiferroelectricity)  
  64.70.M- (Transitions in liquid crystals)  
  64.70.mj (Experimental studies of liquid crystal transitions)  
Corresponding Authors:  R Zgueb     E-mail:  rihab_zgueb@yahoo.fr

Cite this article: 

R Zgueb, H Dhaouadi, T Othman Electro-optical properties and (E, T) phase diagram of fluorinated chiral smectic liquid crystals 2018 Chin. Phys. B 27 107701

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