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Gapless phason in an antiferroelectric liquid crystal

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Title: Gapless phason in an antiferroelectric liquid crystal
Authors: Muševič, I. Browse this author
Blinc, R. Browse this author
Žekš, B. Browse this author
Čopič, M. Browse this author
Wittebrood, M. Browse this author
Rasing, Th. Browse this author
Orihara, H. Browse this author
Ishibashi, Y. Browse this author
Keywords: Liquid crystals
Commensurate-incommensurate transformations
Phason dispersion
Issue Date: Aug-1993
Journal Title: Physical Review Letters
Volume: 71
Issue: 8
Start Page: 1180
End Page: 1183
Publisher DOI: 10.1103/PhysRevLett.71.1180
Abstract: The phason dispersion in the antiferroelectric Sm-CA* liquid crystalline phase of 4-(1-methylheptyloxycarbonyl)phenyl 4’-octyloxybiphenyl-4-carboxylate has been studied by quasielastic light-scattering experiments. The phason is found to be gapless as predicted for a Goldstone mode recovering the broken continuous symmetry. The dispersion has a minimum at q=2qc, where qc is the wave vector of the unperturbed Sm-CA* structure. These results are consistent with the alternating-tilt model of the antiferroelectric Sm-CA* phase.
Rights: © 1993 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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