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Do Lehmann cholesteric droplets subjected to a temperature gradient rotate as rigid bodies?Electronic supplementary information (ESI) available. See DOI: 10.1039/c5sm02906f
Erscheinungsjahr
2016-02
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We performed a Fluorescence Recovery After Photobleaching (FRAP) experiment during the Lehmann rotation of cholesteric droplets in thermodynamic coexistence with the isotropic liquid and subjected to a temperature gradient. By creating and tracking bleached spots near the surface of banded droplets (in which the cholesteric helix is perpendicular to the gradient) and concentric circle droplets oriented by an electric field (in which the helix is parallel to the gradient), we found that neither type of droplet rotates as a solid. This result shows that the texture rotation is mainly due to the local director rotation.
We show that Lehmann cholesteric droplets submitted to a temperature gradient never rotate as a solid, whatever their internal texture.
Sprache
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Identifikatoren
ISSN: 1744-683X
eISSN: 1744-6848
DOI: 10.1039/c5sm02906f
Titel-ID: cdi_rsc_primary_c5sm02906f
Format
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