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题名: Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model
作者: Iwamoto, M ;  Zhong-can, OY
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2004
卷号: 93, 期号:20, 页码:-
关键词: LANGMUIR MONOLAYERS ;  PHASE-TRANSITIONS ;  PATTERN-FORMATION ;  POLAR-MOLECULES ;  ISOTROPIC-PHASE ;  CRYSTALS
学科分类: Physics
通讯作者: Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528552, Japan.
部门归属: Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The dipolar energy of a solid monolayer domain surrounded by a fluid phase at an air-water interface is derived approximately as a sum of an additionally negative line tension and a curvature-elastic energy at the boundary. Variation of the domain energy yields an equilibrium domain shape equation. The obvious solutions of the domain shape equation clearly predict a circle, torus, D-form, S-form, and serpentine manner shape found experimentally, depending on the difference in the Gibbs free energy between the solid and fluid phases and the total line tension. Analysis of linear instability for a circle with a fixed area shows that, above a threshold size, the circle can be deformed into an m-sided quasipolygon. The good agreement with the observation and numerical calculation reported by Lee and McConnell [J. Phys. Chem. 91, 9532 (1993)] shows the quantitative validity of the present theory.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000225068800041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13970
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Iwamoto, M,Zhong-can, OY. Shape deformation and circle instability in two-dimensional lipid domains by dipolar force: A shape- and size-dependent line tension model[J]. PHYSICAL REVIEW LETTERS,2004,93(20):-.
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文件名: Shape Deformation and Circle Instability in Two-Dimensional Lipid Domains by Dipolar Force A Shape- and Size-Dependent Line Tension Model.pdf
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