Abstract
Measurements of ultrasonic velocity V, specific volume v and adiabatic compressibility Kad are carried out in a monotropic nematic liquid crystal, p-anisal-p-phenetidine (pApP), and a polymesomorphic liquid crystal, p-n-decyloxybenzoyl-p-cresol (DBC) with nematic and smectic A phases. Temperature variation of the order parameter is estimated. The pre-transitional effects observed in v and Kad are discussed on the basis of de Gennes' theory generalized by Bendler, and the critical exponents are estimated.
| Original language | English |
|---|---|
| Pages (from-to) | 271-274 |
| Number of pages | 4 |
| Journal | Ultrasonics |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1982 |
Keywords
- liquid crystals
- pre-transitional effects
- ultrasonics
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Acoustics and Ultrasonics
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George, A. K., & Padmini, A. R. K. L. (1982). Pre-transitional effects in a nematic and a polymesomorphic liquid crystal. Ultrasonics, 20(6), 271-274. https://doi.org/10.1016/0041-624X(82)90048-8