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Gapless phason in an antiferroelectric liquid crystal
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 |
Relation: | http://prl.aps.org/ |
Type: | article |
URI: | http://hdl.handle.net/2115/50769 |
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)
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Submitter: 折原 宏
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