Phys. Rev. E 72, 013702 (2005) [2 pages]Comment on “Local elastic stability for nematic liquid crystals”Received 24 January 2005; published 8 July 2005 We discuss a theory recently proposed by Virga and co-workers for the analysis of the local elastic stability of nematic liquid crystals [ R. Rosso, E. G. Virga and S. Kralj Phys. Rev. E. 70 011710 (2004)]. The periodic instability in a nematic sample induced by the saddle-splay elastic constant or by the coupling of an external field with the flexoelectric polarization is reconsidered. We show that in the case in which the two surfaces limiting the sample are characterized by the same easy angle the analysis previously proposed by us coincides with the one proposed by Virga et al. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.72.013702
DOI:
10.1103/PhysRevE.72.013702
PACS:
61.30.Hn, 61.30.Dk
See AlsoOriginal Article: Riccardo Rosso, Epifanio G. Virga, and Samo Kralj, Local elastic stability for nematic liquid crystals, Phys. Rev. E 70, 011710 (2004). |
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