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Titolo:
Study of dielectric anisotropy of an ester/biphenyl mixture exhibiting an induced smectic phase
Autore:
Giri, SK; Mandal, PK; Paul, S;
Indirizzi:
Univ N Bengal, Dept Phys, Liquid Crystal Res Lab, Siliguri 734430, India Univ N Bengal Siliguri India 734430 stal Res Lab, Siliguri 734430, India
Titolo Testata:
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
, volume: 330, anno: 1999,
parte:, 3
pagine: 1587 - 1594
SICI:
1058-725X(1999)330:<1587:SODAOA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY-DIFFRACTION; LIQUID-CRYSTALS; ORDER;
Keywords:
binary mixture; induced smectic phase; dielectric anisotropy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Giri, SK Univ N Bengal, Dept Phys, Liquid Crystal Res Lab, Siliguri 734430, India Univ N Bengal Siliguri India 734430 Lab, Siliguri 734430, India
Citazione:
S.K. Giri et al., "Study of dielectric anisotropy of an ester/biphenyl mixture exhibiting an induced smectic phase", MOL CRYST A, 330, 1999, pp. 1587-1594

Abstract

In this paper we present dielectric investigations of the binary mixtures of 4-n-pentyl 4'cyanobiphenyl (5CB) and 4-n-pentyl 4-n' hexyloxy benzoate (ME6O.5) at different compositions which show an induced smectic phase. Physical properties from different experimental observations have been reportedearlier. We have undertaken this study to have information relating the macroscopic anisotropy and the molecular properties. Mixtures with different mole fractions of ME6O.5 were prepared and their transition temperatures were observed under polarising microscope. Delta epsilon was measured using adigital LCR bridge at 10 id-It. A cell was constituted by means of two plane parallel tin oxide coated conducting glass plates separated by thin glass spacer. Sample was aligned by external magnetic field. Delta epsilon for smectic phase is found to be less than nematic phase. Results in detail will be discussed.

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Documento generato il 03/12/20 alle ore 12:25:30