| Nematic order in small systems: measuring the elastic and wall-anchoring constants in vibrofluidized granular rods. | |
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MedLine Citation:
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PMID: 21231016 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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We investigate nematic order in vibrated granular rods confined to a small quasi-2D container less than 10 rod lengths in diameter. As rod density ρ increases, patterning shifts from bipolar to uniform alignment. We find that a continuum liquid crystal free energy functional captures key patterning features down to almost the particle size. By fitting theory to experiments, we estimate the relative values of bend and splay elastic constants and wall anchoring. We find that splay is softer than bend for all ρ and rod lengths tested, while the ratio of the average elastic constant to wall anchoring increases with ρ. |
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Authors:
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Jennifer Galanis; Ralph Nossal; Wolfgang Losert; Daniel Harries |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Intramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-10-13 |
Journal Detail:
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Title: Physical review letters Volume: 105 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2011-01-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 168001 Citation Subset: IM |
Affiliation:
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Institute of Chemistry and The Fritz Haber Center, The Hebrew University, Jerusalem, 91904, Israel. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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