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'Pretilt Angle' in keywords Facet   Publication Year 2001  [X]
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2001[X]
1Author    G. Czechowski, S. Czerkas3, J. JadżynRequires cookie*
 Title    The Elastic Constants of Nematic /i-Hexylcyanobiphenyl Determined with the Capacitance Method  
 Abstract    The splay (K n) and bend (K 33) elastic constants of n-hexylcyanobiphenyl (C6H 13-Ph-Ph-C=N) were determined from the voltage (U) dependence of the capacitance (C) of the planar nematic cell with a small molecular pretilt angle. The capacitance changes are due to distortion of the director n driven by the applied electric field. K u was obtained from the Freedericksz threshold voltage (C/th) and K 33 from the C(U) dependence above the threshold voltage by means of the method proposed by Gruler et al. and Uchida et al. The significance of the pretilt angle in the determination of K-m is discussed. 
  Reference    Z. Naturforsch. 56a, 257—261 (2001); received January 5 2001 
  Published    2001 
  Keywords    Elastic Constants, Nematic, n-Hexylcyanobiphenyl, Pretilt Angle 
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 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0257.pdf 
 Identifier    ZNA-2001-56a-0257 
 Volume    56