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

S. Bhattacharya; B. Y. Cheng; Bimal K. Sarma; J. 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, J. B. Ketterson

^*Corresponding author for this work

MRC - Materials Research Center

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 - 1982

ASJC Scopus subject areas

General Physics and Astronomy

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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, {J. B.}",

year = "1982",

doi = "10.1103/PhysRevLett.49.1012",

language = "English (US)",

volume = "49",

pages = "1012--1015",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "14",

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T1 - Observation of ultrasonic anomaly near a smectic-A-smectic-C phase transition

AU - Bhattacharya, S.

AU - Cheng, B. Y.

AU - Sarma, Bimal K.

AU - Ketterson, J. B.

PY - 1982

Y1 - 1982

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

AN - SCOPUS:35949017243

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VL - 49

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EP - 1015

JO - Physical review letters

JF - Physical review letters

IS - 14

ER -

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

Abstract

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