Ultrasound in the isotropic phase of cholesteric liquid crystals

Standard

Ultrasound in the isotropic phase of cholesteric liquid crystals. / Romanov, V. P.; Ul'yanov, S. V.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 281, 1996, p. 187-204.

Research output: Contribution to journal › Article › peer-review

Harvard

Romanov, VP & Ul'yanov, SV 1996, 'Ultrasound in the isotropic phase of cholesteric liquid crystals', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, vol. 281, pp. 187-204. https://doi.org/10.1080/10587259608042244

APA

Romanov, V. P., & Ul'yanov, S. V. (1996). Ultrasound in the isotropic phase of cholesteric liquid crystals. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 281, 187-204. https://doi.org/10.1080/10587259608042244

Vancouver

Romanov VP, Ul'yanov SV. Ultrasound in the isotropic phase of cholesteric liquid crystals. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1996;281:187-204. https://doi.org/10.1080/10587259608042244

Author

Romanov, V. P. ; Ul'yanov, S. V. / Ultrasound in the isotropic phase of cholesteric liquid crystals. In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1996 ; Vol. 281. pp. 187-204.

BibTeX

@article{de5791d96aaa44ea8c89d21c6b289141,

title = "Ultrasound in the isotropic phase of cholesteric liquid crystals",

abstract = "The acoustical properties of cholesteric liquid crystals in the isotropic phase including the vicinity of the phase transition point to the ordered phase are investigated. An interaction of fluctuating field of the tensor order parameter with the sound wave is considered. In Gaussian approximation the contribution of fluctuating modes to the sound velocity dispersion and attenuation is calculated. The obtained formulae are compared with ones for nematics in isotropic phase. It was found that the difference between these results rises in the vicinity of the phase transition point. This difference is connected, on the one hand, with the specific fluctuating spectrum and on the other hand with the closing of the instability temperatures of some fluctuating modes to the phase transition temperature Tc. The results are illustrated by the numerical calculations.",

keywords = "Cholesteric liquid crystals, Isotropic phase, Tensor order parameter, Ultrasound",

author = "Romanov, {V. P.} and Ul'yanov, {S. V.}",

year = "1996",

doi = "10.1080/10587259608042244",

language = "English",

volume = "281",

pages = "187--204",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor & Francis",

}

RIS

TY - JOUR

T1 - Ultrasound in the isotropic phase of cholesteric liquid crystals

AU - Romanov, V. P.

AU - Ul'yanov, S. V.

PY - 1996

Y1 - 1996

N2 - The acoustical properties of cholesteric liquid crystals in the isotropic phase including the vicinity of the phase transition point to the ordered phase are investigated. An interaction of fluctuating field of the tensor order parameter with the sound wave is considered. In Gaussian approximation the contribution of fluctuating modes to the sound velocity dispersion and attenuation is calculated. The obtained formulae are compared with ones for nematics in isotropic phase. It was found that the difference between these results rises in the vicinity of the phase transition point. This difference is connected, on the one hand, with the specific fluctuating spectrum and on the other hand with the closing of the instability temperatures of some fluctuating modes to the phase transition temperature Tc. The results are illustrated by the numerical calculations.

AB - The acoustical properties of cholesteric liquid crystals in the isotropic phase including the vicinity of the phase transition point to the ordered phase are investigated. An interaction of fluctuating field of the tensor order parameter with the sound wave is considered. In Gaussian approximation the contribution of fluctuating modes to the sound velocity dispersion and attenuation is calculated. The obtained formulae are compared with ones for nematics in isotropic phase. It was found that the difference between these results rises in the vicinity of the phase transition point. This difference is connected, on the one hand, with the specific fluctuating spectrum and on the other hand with the closing of the instability temperatures of some fluctuating modes to the phase transition temperature Tc. The results are illustrated by the numerical calculations.

KW - Cholesteric liquid crystals

KW - Isotropic phase

KW - Tensor order parameter

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=4243118824&partnerID=8YFLogxK

U2 - 10.1080/10587259608042244

DO - 10.1080/10587259608042244

M3 - Article

AN - SCOPUS:4243118824

VL - 281

SP - 187

EP - 204

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -

ID: 76496502