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 |
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Keywords
- liquid crystals
- pre-transitional effects
- ultrasonics
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Acoustics and Ultrasonics
Cite this
Pre-transitional effects in a nematic and a polymesomorphic liquid crystal. / George, A. K.; Padmini, A. R K L.
In: Ultrasonics, Vol. 20, No. 6, 1982, p. 271-274.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pre-transitional effects in a nematic and a polymesomorphic liquid crystal
AU - George, A. K.
AU - Padmini, A. R K L
PY - 1982
Y1 - 1982
N2 - 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.
AB - 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.
KW - liquid crystals
KW - pre-transitional effects
KW - ultrasonics
UR - http://www.scopus.com/inward/record.url?scp=0020207368&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020207368&partnerID=8YFLogxK
U2 - 10.1016/0041-624X(82)90048-8
DO - 10.1016/0041-624X(82)90048-8
M3 - Article
AN - SCOPUS:0020207368
VL - 20
SP - 271
EP - 274
JO - Ultrasonics
JF - Ultrasonics
SN - 0041-624X
IS - 6
ER -