Light scattering from the free surface near a second order nematic to smectic a phase transition
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چکیده
2014 We have studied the spectrum of light scattered by surfaces waves thermally excited on the free surface of a nematic liquid crystal in a magnetic field near a second order nematic to smectic A phase transition. We have measured the surface tension and three viscosity coefficients. One of the viscosities diverges and its critical behaviour has been followed to within 3 mK of the transition. The measured critical exponent is consistent with mean field theory for the two studied liquid crystals : cyanobenzilidene octyloxyaniline (CBOOA) and octyloxycyanobiphenyl (M 24). LE JOURNAL DE PHYSIQUE TOME 37, JUILLET-AOÛT 1976, Classification Physics Abstracts 7.130 7.480 7.620
منابع مشابه
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تاریخ انتشار 2017