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Observation of the soft mode in the Sm-Cα* phase

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Phys. Rev. E 62, R5903-R5906.pdf66.54 kBPDFView/Open
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Title: Observation of the soft mode in the Sm-Cα* phase
Authors: Bourny, Valéry Browse this author
Fajar, Andika Browse this author
Orihara, Hiroshi Browse this author
Keywords: Liquid crystals
Landau-type theory
Issue Date: Nov-2000
Journal Title: Physical Review E
Volume: 62
Issue: 5
Start Page: R5903
End Page: R5906
Publisher DOI: 10.1103/PhysRevE.62.R5903
Abstract: We have performed the electro-optical measurements in an antiferroelectric liquid crystal 4-(1-methylheptyloxycarbonyl)phenyl 4′-octylcarbonyloxybiphenyl-4-carboxylate (MHPOCBC) and observed the soft mode in the chiral Sm-Cα* phase. This is a direct consequence that the Sm-Cα* phase is induced by the condensation of a tilting mode. A Landau-type theory was developed to analyze frequency dispersions in the second-order response and it was found that the Sm-A–Sm-Cα* phase transition is close to a tricritical point.
Rights: © 2000 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 折原 宏

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