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Glassy behaviors of nematic liquid crystals confined in porous media

Research Project

Project/Area Number 21740310
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Biophysics/Chemical physics
Research InstitutionKyoto University

Principal Investigator

ARAKI Takeaki  京都大学, 理学研究科, 准教授 (20332596)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsネマチック液晶 / 多孔質 / ガラス的緩和 / アンカリング効果 / 配向欠陥 / ネマティック液晶 / ガラス的挙動 / メモリー効果 / Monte Carloシミュレーション / トポロジーによる拘束 / 液晶 / 空間拘束 / ガラス / 数値シミレーション / 粗視化モデル / 不純物効果 / 相転移
Research Abstract

We investigated slow glassy behaviors of nematic liquid crystals confined in porous media by means of Monte Carlo simulation. In particular, we focused on the topology of the porous matrix. We found two relaxation modes in the glassy behaviors. The slow mode is attributed to the reconfiguration of the topological defects. We also found that the slow mode can be suppressed in regular shaped porous media, in which only the fast viscoelastic mode is observed.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (27 results)

All 2011 2010 2009 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (17 results) Remarks (1 results)

  • [Journal Article] Domain growth and defect motion in isotropic-nematic transition in liquid crystalline polymers2011

    • Author(s)
      Shunsuke Yabunaka and Takeaki Araki
    • Journal Title

      Phys. Rev. E

      Volume: 83 Issue: 6

    • DOI

      10.1103/physreve.83.061711

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Phase transition in soft matter induced by selective solvation2011

    • Author(s)
      Akira Onuki, Ryuichi Okamoto and Takeaki Araki
    • Journal Title

      Bull. Chem. Soc. Jpn.

      Volume: 84 Issue: 6 Pages: 569-587

    • DOI

      10.1246/bcsj.20110012

    • NAID

      130004152930

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Memory and topological frustration in nematic liquid crystals confined in porous materials2011

    • Author(s)
      T. Araki, M. Buscaglia, T. Bellini and H. Tanaka
    • Journal Title

      Nature Mater

      Volume: Vol.10 Issue: 4 Pages: 303-309

    • DOI

      10.1038/nmat2982

    • Related Report
      2010 Annual Research Report 2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of binary mixtures with ions : dynamic structure factor and mesophase formation2009

    • Author(s)
      Takeaki Araki and Akira Onuki
    • Journal Title

      J. Phys. : Condens. Matter 21

      Volume: 21 Issue: 42 Pages: 424116-424116

    • DOI

      10.1088/0953-8984/21/42/424116

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Defect structures in nematic liquid crystals around charged particles2009

    • Author(s)
      Keisuke Tojo, Akira Furukawa, Takeaki Araki and Akira Onuki
    • Journal Title

      Euro. Phys. J. E

      Volume: 30 Pages: 55-64

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Structual and dynamics heterogeneities in two-dimensional melting2009

    • Author(s)
      Hayato Shiba, Akira Onuki and Takeaki Araki
    • Journal Title

      Euruphysics Letters

      Volume: 86 Issue: 6 Pages: 66004-66004

    • DOI

      10.1209/0295-5075/86/66004

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of binary mixtures with ions : Dynamic structure factor and mesophase formation2009

    • Author(s)
      Takeaki Araki, Akira Onuki
    • Journal Title

      Journal of Physics : Condensed Matter 21

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Defect structures in nematic liquid crystals around charged particles2009

    • Author(s)
      K.Tojo, A.Furukawa, T.Araki, A.Onuki
    • Journal Title

      European Physical Journal E 30

      Pages: 55-64

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural and dynamical heterogeneities in two-dimensional melting2009

    • Author(s)
      H.Shiba, A.Onuki, T.Araki
    • Journal Title

      Europhysics Letters 86

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 多孔質に閉じ込めたネマティック液晶の示すガラス的挙動2010

    • Author(s)
      荒木武昭・田中肇・Marco Buscaglia・Tommaso Bellini
    • Organizer
      日本液晶学会・ソフトマターフォーラム第9回講演会「液晶の構造と輸送現象」
    • Place of Presentation
      日本・京都(招待講演)
    • Year and Date
      2010-12-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Memory Effects from Topological Connectivity of Nematic Liquid Crystals Confined in Porous Materials2010

    • Author(s)
      Takeaki Araki, Marco Buscaglia, Tommaso Bellini, Hajime Tanaka
    • Organizer
      The ISSP International Workshop on Soft Matter Physics
    • Place of Presentation
      日本・千葉
    • Year and Date
      2010-08-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Fluid particle dynamics simulation for colloidal systems2010

    • Author(s)
      Takeaki Araki, Hajime Tanaka
    • Organizer
      CECAM Workshop : Mesoscale methods for colloidal hydrodynamics
    • Place of Presentation
      スイス・ローザンヌ(招待講演)
    • Year and Date
      2010-07-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] Mesophase formation in binary fluid mixtures containing antagonistic salt2010

    • Author(s)
      Takeaki Araki, Akira Onuki
    • Organizer
      International Soft Matter Conference 2010
    • Place of Presentation
      スペイン・グラナダ
    • Year and Date
      2010-07-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] 塩を含む二成分系の相分離:組成比、塩添加量に依存した共存線の変化2010

    • Author(s)
      岡本隆一・小貫明・荒木武昭
    • Organizer
      つくばソフトマター研究会2010
    • Place of Presentation
      産総研、つくば
    • Year and Date
      2010-02-23
    • Related Report
      2009 Annual Research Report
  • [Presentation] Wetting of charged particles in binary fluids containing ions2010

    • Author(s)
      Takeaki Araki, Ryuichi Okamoto and Akira Onuki
    • Organizer
      International Symposium on Non-Equilibrium Soft Matter 2010
    • Place of Presentation
      Nara
    • Related Report
      2010 Final Research Report
  • [Presentation] Dynamics of Binary Mixtures Containing Antagonistic Salt2010

    • Author(s)
      Takeaki Araki, Ryuichi Okamoto and Akira Onuki
    • Organizer
      The ISSP International Workshop on Soft Matter Physics (ISSP/SOFT2010)
    • Place of Presentation
      Chiba
    • Related Report
      2010 Final Research Report
  • [Presentation] Memory Effects from Topological Connectivity of Nematic Liquid Crystals Confined in Porous Materials2010

    • Author(s)
      Takeaki Araki, Marco Buscaglia, Tommaso Bellini and Hajime Tanaka
    • Organizer
      The ISSP International Workshop on Soft Matter Physics (ISSP/SOFT2010)
    • Place of Presentation
      Chiba
    • Related Report
      2010 Final Research Report
  • [Presentation] Fluid particle dynamics simulation for colloidal systems2010

    • Author(s)
      Takeaki Araki and Hajime Tanaka
    • Organizer
      CECAM Workshop : Mesoscale methods for colloidal hydrodynamics
    • Place of Presentation
      Lausanne, Switherland
    • Related Report
      2010 Final Research Report
  • [Presentation] Mesophase formation in binary fluid mixtures containing antagonistic salt2010

    • Author(s)
      Takeaki Araki and Akira Onuki
    • Organizer
      International Soft Matter Conference 2010
    • Place of Presentation
      Granada, Spain
    • Related Report
      2010 Final Research Report
  • [Presentation] 融解転移下の2次元粒子系におけるダイナミクス2009

    • Author(s)
      芝隼人・小貫明・荒木武昭
    • Organizer
      特定領域ソフトマター物理 第3回公開シンポジウム
    • Place of Presentation
      京都大学
    • Year and Date
      2009-11-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] 融解転移下の2次元粒子系におけるダイナミクス2009

    • Author(s)
      芝隼人・小貫明・荒木武昭
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] クーロン相互作用と水和効果による相転移現象2009

    • Author(s)
      小貫明・荒木武昭・岡本隆一
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-26
    • Related Report
      2009 Annual Research Report
  • [Presentation] イオンを含む二成分流体におけるメゾ構造形成2009

    • Author(s)
      荒木武昭・小貫明
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-25
    • Related Report
      2009 Annual Research Report
  • [Presentation] Dynamics of phase separation of binary fluid mixtures with ions2009

    • Author(s)
      Takeaki Araki, Akira Onuki
    • Organizer
      Gordon Research Conference : Liquids, Chemistry & Physics Of
    • Place of Presentation
      Holderness, USA
    • Year and Date
      2009-08-06
    • Related Report
      2009 Annual Research Report
  • [Presentation] 荷電粒子を含むネマティック液晶における欠陥構造の研究2009

    • Author(s)
      東條圭祐・荒木武昭・小貫明
    • Organizer
      特定領域「ソフトマター物理」第4回領域研究会
    • Place of Presentation
      北海道大学
    • Year and Date
      2009-07-01
    • Related Report
      2009 Annual Research Report
  • [Presentation] Dynamics of phase separation of binary fluid mixtures with ions2009

    • Author(s)
      Takeaki Araki and Akira Onuki
    • Organizer
      Gordon Research Conference: Liquids, Chemistry & Physics Of
    • Place of Presentation
      Holderness, USA
    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://statphys.scphys.kyoto-u.ac.jp/~araki/

    • Related Report
      2010 Final Research Report

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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