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  High frequency effective viscosities of nematic liquid crystals with tilted orientation

Domack, A., & Johannsmann, D. (2002). High frequency effective viscosities of nematic liquid crystals with tilted orientation. Applied Physics Letters, 80(25), 4750-4752.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-65BA-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-65BB-B
Genre: Journal Article

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 Creators:
Domack, A.1, Author              
Johannsmann, Diethelm1, Author              
Affiliations:
1MPI for Polymer Research, Max Planck Society, escidoc:1309545              

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 Abstract: Using quartz crystal resonators, we have measured the effective viscosities of nematic liquid crystals (LCs) in the MHz domain. The LC orientation was switched via the command-surface effect. The dependence of viscosity on orientation cannot be explained by orientational modes. They are attributed to the emission of longitudinal sound, the latter effect requiring a tilt orientation of the nematic director with respect to the surface. Optical investigations confirm the existence of a finite pretilt angle. Sensor applications are discussed. (C) 2002 American Institute of Physics.

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Language(s): eng - English
 Dates: 2002-06-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: No review
 Identifiers: eDoc: 28701
ISI: 000176275400022
 Degree: -

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Title: Applied Physics Letters
  Alternative Title : Appl. Phys. Lett.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 80 (25) Sequence Number: - Start / End Page: 4750 - 4752 Identifier: ISSN: 0003-6951