Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Liquid Crystals
Year: 2008  |  Volume: 35  |  Issue: 6  |  Page No.: 751 - 756

Anomalous behaviour in the SmA*-SmCA* pre-transitional regime of a chiral swallow-tailed antiferroelectric liquid crystal

Surjya Sarathi Bhattacharyya, M. Rahman, A. Mukherjee, B. K. Chaudhuri and S. L. Wu    

Abstract: The temperature- and electric field-dependent dielectric relaxation and polarisation of a new chiral swallow tailed antiferroelectric liquid crystal, i.e. 1-ethylpropyl (S)-2-lcub6-[4-(4`-decyloxyphenyl)benzoyloxy]-2-naphthylrcubpropionate (abbreviated as EP10PBNP), were investigated. The electric field-induced dielectric loss spectra of EP10PBNP revealed electroclinic and anomalous dielectric behaviour in the chiral smectic A (SmA*)-chiral antiferroelectric smectic C (SmCA*) pre-transitional regime. From an analysis of thermal hysteresis of the dielectric constant, electric field-induced polarisation and dielectric loss spectra, the appearance of a ferrielectric-like mesophase is observed followed by an unstable SmCA* phase in the SmA*-SmCA* pre-transitional regime.

View Fulltext    |   Related Articles   |   Back
   
 
 
 
  Related Articles

 
 
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility