Picture of a sphere with binary code

Making Strathclyde research discoverable to the world...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. It exposes Strathclyde's world leading Open Access research to many of the world's leading resource discovery tools, and from there onto the screens of researchers around the world.

Explore Strathclyde Open Access research content

Theoretical analysis of the magnetic Freedericksz transition in the presence of flexoelectricity and ionic contamination

Smith, A.A.T. and Brown, C.V. and Mottram, N.J. (2007) Theoretical analysis of the magnetic Freedericksz transition in the presence of flexoelectricity and ionic contamination. Physical Review E, 75. 041704-041712. ISSN 1539-3755

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We have derived an approximate analytical expression for the static director distortion of a planar nematic layer subject to a magnetic field H immediately above the critical Fræ#169;edericksz transition H=Hc. The layer contains a voltage-independent density of positively and negatively singly charged ionic species that interact with the flexoelectric and dielectric polarizations which appear when the director is distorted. The analytical solution is shown to correspond closely to a full numerical calculation when H/Hc=1.01. The analytical approach allows a quantitative insight into how the mobile charge shields the polarization for different values of the elastic constants, the ionic density, the flexoelectric coefficients, and the layer thickness.