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Proceedings Paper

Elastic constants for 8-OCB
Author(s): Grzegorz Czechowski; B. Zywucki; Jan Jadzyn
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Paper Abstract

The Frederiks transitions for the n-octyloxycyanobiphenyl (8-OCB) placed in the external magnetic and electric field as a function of the temperature have been studied. On the basis of threshold values Bc and Uc, the elastic constants for splay, bend and twist modes are determined. The magnetic anisotropy of 8-OCB as a function of temperature has been determined. The K11 and K33 elastic constants show the pretransitional nematic- smectic A effect. The values of critical exponents obtained from the temperature dependence of K11 and K33 in the vicinity of N-SA phase transition are discussed.

Paper Details

Date Published: 15 October 1993
PDF: 4 pages
Proc. SPIE 1845, Liquid and Solid State Crystals: Physics, Technology and Applications, (15 October 1993); doi: 10.1117/12.156985
Show Author Affiliations
Grzegorz Czechowski, Institute of Molecular Physics (Poland)
B. Zywucki, Institute of Molecular Physics (Poland)
Jan Jadzyn, Institute of Molecular Physics (Poland)

Published in SPIE Proceedings Vol. 1845:
Liquid and Solid State Crystals: Physics, Technology and Applications
Jozef Zmija, Editor(s)

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