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Nematics with dispersed polymer fibrils: a Monte Carlo study of the external-field-induced switching | C Chiccoli
; P Pasini
; G Skacej
; C Zannoni
; S Zumer
; | Date: |
31 Dec 2002 | Journal: | Phys Rev E, 67 (1 Pt 1), 010701 | Abstract: | We present a Monte Carlo study of molecular ordering in nematics with dispersed regular and random arrays of straight and distorted polymer fibrils. We focus on the collective molecular reorientation--the switching--resulting from the competing aligning effects of fibrils and of a progressively applied transversal external field, and for straight fibrils identify structural Fréedericksz and saturation transitions. The role of fibril topography in the switching is monitored by simulating electric capacitance Slightly distorted fibrils are shown to give a sharper switching at a lower threshold. | Source: | PubMed, pmid12636481 | Services: | Forum | Review | Favorites |
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