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


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Phys. Rev. E 62, R5903-R5906.pdf

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/50766

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
Keywords:	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
Relation:	http://pre.aps.org/
Type:	article
URI:	http://hdl.handle.net/2115/50766
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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