Observation of ultrasonic anomaly near a smectic-A-smectic-C phase transition

S. Bhattacharya; B. Y. Cheng; Bimal K. Sarma; John B Ketterson

doi:10.1103/PhysRevLett.49.1012

Observation of ultrasonic anomaly near a smectic-A-smectic-C phase transition

S. Bhattacharya^*, B. Y. Cheng, Bimal K. Sarma, John B Ketterson

^*Corresponding author for this work

Physics and Astronomy

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

2 Scopus citations

Abstract

The first observation is reported of an anomalous attenuation and velocity dispersion near a smectic-A-smectic-C phase transition in a liquid crystal. The anomaly is found to be strongly anisotropic and dominated by the Landau-Khalatnikov relaxation of the order parameter in contrast with other liquid-crystalline phase transitions.

Original language	English (US)
Pages (from-to)	1012-1015
Number of pages	4
Journal	Physical review letters
Volume	49
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.49.1012
State	Published - Jan 1 1982

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.49.1012

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title = "Observation of ultrasonic anomaly near a smectic-A-smectic-C phase transition",

abstract = "The first observation is reported of an anomalous attenuation and velocity dispersion near a smectic-A-smectic-C phase transition in a liquid crystal. The anomaly is found to be strongly anisotropic and dominated by the Landau-Khalatnikov relaxation of the order parameter in contrast with other liquid-crystalline phase transitions.",

author = "S. Bhattacharya and Cheng, {B. Y.} and Sarma, {Bimal K.} and Ketterson, {John B}",

year = "1982",

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doi = "10.1103/PhysRevLett.49.1012",

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journal = "Physical Review Letters",

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AU - Bhattacharya, S.

AU - Cheng, B. Y.

AU - Sarma, Bimal K.

AU - Ketterson, John B

PY - 1982/1/1

Y1 - 1982/1/1

N2 - The first observation is reported of an anomalous attenuation and velocity dispersion near a smectic-A-smectic-C phase transition in a liquid crystal. The anomaly is found to be strongly anisotropic and dominated by the Landau-Khalatnikov relaxation of the order parameter in contrast with other liquid-crystalline phase transitions.

AB - The first observation is reported of an anomalous attenuation and velocity dispersion near a smectic-A-smectic-C phase transition in a liquid crystal. The anomaly is found to be strongly anisotropic and dominated by the Landau-Khalatnikov relaxation of the order parameter in contrast with other liquid-crystalline phase transitions.

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U2 - 10.1103/PhysRevLett.49.1012

DO - 10.1103/PhysRevLett.49.1012

M3 - Article

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EP - 1015

JO - Physical Review Letters

JF - Physical Review Letters

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Observation of ultrasonic anomaly near a smectic-A-smectic-C phase transition

Abstract

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