A First-Order Transition of the Smectic A-Smectic C* in Ferroelectric Liquid Crystals
FERROELECTRICS, cilt.427, ss.137-142, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 427
- Basım Tarihi: 2012
- Doi Numarası: 10.1080/00150193.2012.675830
- Dergi Adı: FERROELECTRICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.137-142
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
The static dielectric constant is calculated as a function of temperature using a mean field model close to the smectic A-smectic C* transition for the ferroelectric liquid crystal 4-(3-methyl-2-chlorobutanoyloxy)-4'-heptyloxybiphenyl (A7). This calculation of the dielectric constant is performed for the pure optically active compound (T-c = 73.4 degrees C) and the temperature range is determined for a first-order smectic A-smectic C* transition from the mean field model. Our predicted values describe adequately the observed behaviour of the dielectric constant close to the smectic A-smectic C* transition and also the temperature range in the smectic A phase of A7.