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Memory effects in randomly perturbed systems exhibiting continuous symmetry breakingCvetko, Matej, 1981- ; Ambrožič, Milan ; Kralj, SamoWe studied pattern characteristics in randomly perturbed structures exhibitingcontinuous symmetry breaking. A Lebwohl-Lasher-type lattice model was used which described well the onset of ... orientational ordering of a system of rod-like objects. For example, such systems mimic the orientational ordering tendency in liquid crystals or in an ensemble of nanotubes. We set impurities to impose a random anisotropy type of disorder on the objects. Structural characteristics were studied as a function of concentration of impurities, interaction strength w between impurities and rod-like objects, external ordering strength and history of samples. We showed that the characteristic linear size of patterns and range of ordering strongly depend on the history of samples for weak enough strength w. The two-dimensional and three-dimensional simulations yielded qualitatively similar results.Source: Liquid crystals. - ISSN 0267-8292 (Vol. 36, no. 1, Jan 2009, str. 33-41)Type of material - article, component partPublish date - 2009Language - englishCOBISS.SI-ID - 16708616
Author
Cvetko, Matej, 1981- |
Ambrožič, Milan |
Kralj, Samo
Topics
tekoči kristali |
spomin |
nanodelci |
liquid crystals |
memory effect |
nanotubes |
structural order |
percolation
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Cvetko, Matej, 1981- | 30134 |
Ambrožič, Milan | 11142 |
Kralj, Samo | 08612 |
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