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Frequency-dependent dielectric contribution of flexoelectricity allowing control of state switching in helicoidal liquid crystals.

Abstract:

The contribution of flexoelectric polarization to the dielectric susceptibility in helicoidal liquid crystals is formulated for the static equilibrium case, and further in the case of a time-varying field. A dispersion of the dielectric permittivity due to the frequency response of flexoelectric switching is described. The special case of a negative dielectric-anisotropy nematic material is considered and experimentally shown to agree with the analytical theory. It is further demonstrated how...

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Publisher copy:
10.1103/physreve.88.012506

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Role:
Author
Journal:
Physical review. E, Statistical, nonlinear, and soft matter physics
Volume:
88
Issue:
1
Pages:
012506
Publication date:
2013-07-05
DOI:
EISSN:
1550-2376
ISSN:
1539-3755
URN:
uuid:4f7021ee-f539-43fa-8fc5-cc7cc013b045
Source identifiers:
418552
Local pid:
pubs:418552
Language:
English

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