Ferroelectric nematic monolayer

Yuka Tabe; Takahiro Yamamoto; Isa Nishiyama; Makoto Yoneya; Hiroshi Yokoyama

doi:10.1143/jjap.42.l406

Ferroelectric nematic monolayer

Yuka Tabe, Takahiro Yamamoto, Isa Nishiyama, Makoto Yoneya, Hiroshi Yokoyama

Research output: Contribution to journal › Letter › peer-review

8 Citations (Scopus)

Abstract

Ferroelectricity is desirable for realizing fast-response liquid crystal devices. Existing ferroelectric liquid crystals are improper with the spontaneous polarization Ps being indirectly induced by the broken centrosymmetry of molecular arrangement. We found that Langmuir monolayers of certain dialkylated nematic compound exhibit a laterally polarized two-dimensional ferroelectric nematic. The Ps is comparable to that of chiral smectic liquid crystals, and shows a fast linear electro-optic switching with a microsecond response. Estimates of electrostatic energy suggest that the ferroelectricity may be driven by the direct dipolar interactions.

Original language	English
Pages (from-to)	L406-L409
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	42
Issue number	4 B
DOIs	https://doi.org/10.1143/jjap.42.l406
Publication status	Published - 2003 Apr 15
Externally published	Yes

Keywords

Achiral molecule
Dipolar interaction
Intrinsic ferroelectricity
Langmuir monolayer
Nematic liquid crystal
Spontaneous polarization
Two-dimensionality

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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10.1143/jjap.42.l406

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title = "Ferroelectric nematic monolayer",

abstract = "Ferroelectricity is desirable for realizing fast-response liquid crystal devices. Existing ferroelectric liquid crystals are improper with the spontaneous polarization Ps being indirectly induced by the broken centrosymmetry of molecular arrangement. We found that Langmuir monolayers of certain dialkylated nematic compound exhibit a laterally polarized two-dimensional ferroelectric nematic. The Ps is comparable to that of chiral smectic liquid crystals, and shows a fast linear electro-optic switching with a microsecond response. Estimates of electrostatic energy suggest that the ferroelectricity may be driven by the direct dipolar interactions.",

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doi = "10.1143/jjap.42.l406",

language = "English",

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TY - JOUR

T1 - Ferroelectric nematic monolayer

AU - Tabe, Yuka

AU - Yamamoto, Takahiro

AU - Nishiyama, Isa

AU - Yoneya, Makoto

AU - Yokoyama, Hiroshi

PY - 2003/4/15

Y1 - 2003/4/15

N2 - Ferroelectricity is desirable for realizing fast-response liquid crystal devices. Existing ferroelectric liquid crystals are improper with the spontaneous polarization Ps being indirectly induced by the broken centrosymmetry of molecular arrangement. We found that Langmuir monolayers of certain dialkylated nematic compound exhibit a laterally polarized two-dimensional ferroelectric nematic. The Ps is comparable to that of chiral smectic liquid crystals, and shows a fast linear electro-optic switching with a microsecond response. Estimates of electrostatic energy suggest that the ferroelectricity may be driven by the direct dipolar interactions.

AB - Ferroelectricity is desirable for realizing fast-response liquid crystal devices. Existing ferroelectric liquid crystals are improper with the spontaneous polarization Ps being indirectly induced by the broken centrosymmetry of molecular arrangement. We found that Langmuir monolayers of certain dialkylated nematic compound exhibit a laterally polarized two-dimensional ferroelectric nematic. The Ps is comparable to that of chiral smectic liquid crystals, and shows a fast linear electro-optic switching with a microsecond response. Estimates of electrostatic energy suggest that the ferroelectricity may be driven by the direct dipolar interactions.

KW - Achiral molecule

KW - Dipolar interaction

KW - Intrinsic ferroelectricity

KW - Langmuir monolayer

KW - Nematic liquid crystal

KW - Spontaneous polarization

KW - Two-dimensionality

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U2 - 10.1143/jjap.42.l406

DO - 10.1143/jjap.42.l406

M3 - Letter

AN - SCOPUS:0037932093

VL - 42

SP - L406-L409

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 4 B

ER -

Ferroelectric nematic monolayer

Abstract

Keywords

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