NDLI: On the Field-Induced Cholesteric-Nematic Transition in Cholesteric Liquid Crystals with Homeotropic Boundary Conditions

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On the Field-Induced Cholesteric-Nematic Transition in Cholesteric Liquid Crystals with Homeotropic Boundary Conditions

Content Provider	Semantic Scholar
Author	Brokx, J. P. L. Vertogen, Ger Groesen, E. Van
Copyright Year	1983
Abstract	Abstract The influence of homeotropic boundary conditions on the cholesteric-nematic transition is discussed, starting from the assumption that the director field consists of only components perpendicular to the helix axis, which is directed parallel to the boundary planes. Attention is paid to the solution of Cladis and Kléman for the simpler case without magnetic field. Their solution, consisting of regularly spaced line signularities, is derived in another more transparent way. Besides it is shown that even director fields without singularities are possible. The presence of a magnetic field complicates the solution considerably. Now the relevant Euler-Lagrange equation is solved in an approximate way by partly resorting to the difference method. The usefulness of the method is demonstrated by applying this technique to the nematic-cholesteric transition and the Fréedericksz transition in nematics.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1515/zna-1983-0102
Alternate Webpage(s)	http://zfn.mpdl.mpg.de/data/Reihe_A/38/ZNA-1983-38a-0001.pdf
Alternate Webpage(s)	https://doi.org/10.1515/zna-1983-0102
Volume Number	38
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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