Schlieren textures in free-standing nematic films: evidence of biaxiality
作者:
S. CHANDRASEKHAR,
GEETHA G. NAIR,
D. S. SHANKAR RAO,
S. KRISHNA PRASAD,
K. PRAEFCKE,
D. BLUNK,
期刊:
Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 24,
issue 1
页码: 67-70
ISSN:0267-8292
年代: 1998
DOI:10.1080/026782998207587
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Conoscopic studies reveal that the nematic phase of 4,4-(p-terphenyl)-bis\[2,3,4-tri(dodecyloxy)benzal]imine is biaxial, the biaxial angle increasing with schlieren textures exhibited by the nematic phase have been between glass plates, as well as free-standing consisting entirely of s or 2-brush disclinations, confirming an earlier suggestion that the absence of 4-brush disclinations is evidence of biaxiality. decreasing temperature. The examined. Films sandwiched films, exhibit a nematic schlieren texture
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