ORDERS OF NEMATIC LIQUID CRYSTAL IN SOLUTION AND THE EFFECT OF EXTERNAL FIELDS ON THEM | Zendy

LIU HE-WEN | Zendy; Tang Kaibin | Zendy

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ORDERS OF NEMATIC LIQUID CRYSTAL IN SOLUTION AND THE EFFECT OF EXTERNAL FIELDS ON THEM

Author(s) -

LIU HE-WEN,

Tang Kaibin

Publication year - 1996

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.45.480

Subject(s) - liquid crystal , volume fraction , physics , condensed matter physics , phase (matter) , phase transition , mean field theory , square (algebra) , distribution (mathematics) , order (exchange) , materials science , thermodynamics , mathematical analysis , quantum mechanics , geometry , mathematics , finance , economics

Self-consistent equation for order parameter of nematic liquid crystal (LC) in solution is obtained on the basis of Lebwohl-Lasher model and mean-field approximation. Numerical calculation shows that LC in solution with different volume fractions all undergo the first-order phase transition at 2> =0.324 without external fields, and TN1 is proportional to the volume fraction, TφN1= Tφ=1N1φ. Under applied external fields, LCs undergo second-order phase transition at 2 > = 0.40. Distribution curves are in Ⅴ shape. The variation of the distribution mean square errors with> has a maximum at 2> = 0.20.

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