Phase Diagram of the Nematic-Smectic A Transition of the Binary Mixture of Parallel Hard Cylinders of Different Lengths
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概要
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We study the nematic-smetic A phase transition of binary mixture of parallel hard cylinders of different lengths. We use the Helmholtz free energy truncated at the second virial term. Changing values of q(length of a longer cylinder), x(composition) and η(packing fraction) of the cylinders, we obtained the transition points at which the nematic phase becomes unstable for a sinusoidal density perturbation. Phase diagrams on η vs x plane are drawn for various q's. Depending on q and x, the stable region of the smetic A is suppressed or enlarged, and two types of structures of the smetic A appear. In one type of the structure, each layer of the smetic A contains longer particles and shorter particles uniformly. In the other type of the structure, layer of shorter particles and layer of longer particles stack alternatively.
- 社団法人日本物理学会の論文
- 1994-03-15
著者
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KODA Tomonori
Department of Polymer Science and Engineering, Yamagata University
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KIMURA Hatsuo
Department of Applied Physics and Chemistry, Fukui University of Technology
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Kimura Hatsuo
Department Of Applied Physics And Chemistry Fukui University Of Technology
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Koda Tomonori
Department Of Applied Physics Faculty Of Engineering Nagoya University
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