Stewart, I.W. (2003) *Layer distortions induced by a magnetic field in planar samples of smectic C liquid crystals.* Liquid Crystals, 30 (8). pp. 909-920. ISSN 0267-8292

## Abstract

This article derives theoretical results for the onset of the Helfrich-Hurault transition in smectic C liquid crystals induced by a magnetic field applied parallel to the smectic layers. A suitable quadratic energy in terms of the smectic layer displacement u is derived from the nonlinear version of the smectic C energy. This energy is minimized via averaging to enable the calculation of a critical field strength Hc for the onset of layer distortions. Comparisons are made with known results for the corresponding geometry in the smectic A case. An estimate for the value of the smectic C elastic constant A12 can also be made by considering characteristic length scales.

Item type: | Article |
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ID code: | 2140 |

Keywords: | Helfrich-Hurault transition, smectics, physics, liquid crystals, Mathematics, Physics |

Subjects: | Science > Mathematics Science > Physics |

Department: | Faculty of Science > Mathematics and Statistics |

Related URLs: | |

Depositing user: | Strathprints Administrator |

Date Deposited: | 24 Nov 2006 |

Last modified: | 12 Mar 2012 10:37 |

URI: | http://strathprints.strath.ac.uk/id/eprint/2140 |

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