Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample.
Identifieur interne : 003817 ( Main/Exploration ); précédent : 003816; suivant : 003818Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample.
Auteurs : RBID : pubmed:11690000Abstract
The three-component mixture showing the V-shaped switching in a rubbing cell is investigated using a temperature gradient cell (TGC) where the epitaxial method of alignment, but without an alignment layer, is used. The molecular alignment and the switching characteristics in a TGC are compared with the rubbing sandwich and the open cells. The uniform or the twisted state is observed in the TGC, depending on the surface condition whether indium-tin oxide (ITO) or glass, while the uniformlike state with the average optical axis parallel to the smectic layer normal emerges only in the rubbing cell. The cancellation of the surface polarization charges by the surface free charges on the ITO surfaces determines the molecular alignment state in the TGC. From these results, we conclude that the nonpolar in-plane anchoring plays an important role in giving a uniformlike state in the rubbing cell.
PubMed: 11690000
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample.</title><author><name sortKey="Seomun, S S" uniqKey="Seomun S">S S Seomun</name><affiliation wicri:level="1"><nlm:affiliation>Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland.</nlm:affiliation><country xml:lang="fr">Irlande (pays)</country><wicri:regionArea>Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2</wicri:regionArea></affiliation></author><author><name sortKey="Panov, V P" uniqKey="Panov V">V P Panov</name></author><author><name sortKey="Vij, J K" uniqKey="Vij J">J K Vij</name></author><author><name sortKey="Fukuda, A" uniqKey="Fukuda A">A Fukuda</name></author><author><name sortKey="Ot N, J M" uniqKey="Ot N J">J M Otón</name></author></titleStmt><publicationStmt><date when="2001">2001</date><idno type="RBID">pubmed:11690000</idno><idno type="pmid">11690000</idno><idno type="wicri:Area/Main/Corpus">003877</idno><idno type="wicri:Area/Main/Curation">003877</idno><idno type="wicri:Area/Main/Exploration">003817</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The three-component mixture showing the V-shaped switching in a rubbing cell is investigated using a temperature gradient cell (TGC) where the epitaxial method of alignment, but without an alignment layer, is used. The molecular alignment and the switching characteristics in a TGC are compared with the rubbing sandwich and the open cells. The uniform or the twisted state is observed in the TGC, depending on the surface condition whether indium-tin oxide (ITO) or glass, while the uniformlike state with the average optical axis parallel to the smectic layer normal emerges only in the rubbing cell. The cancellation of the surface polarization charges by the surface free charges on the ITO surfaces determines the molecular alignment state in the TGC. From these results, we conclude that the nonpolar in-plane anchoring plays an important role in giving a uniformlike state in the rubbing cell.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">11690000</PMID><DateCreated><Year>2001</Year><Month>11</Month><Day>05</Day></DateCreated><DateCompleted><Year>2004</Year><Month>12</Month><Day>16</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">1539-3755</ISSN><JournalIssue CitedMedium="Print"><Volume>64</Volume><Issue>4 Pt 1</Issue><PubDate><Year>2001</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Physical review. E, Statistical, nonlinear, and soft matter physics</Title><ISOAbbreviation>Phys Rev E Stat Nonlin Soft Matter Phys</ISOAbbreviation></Journal><ArticleTitle>Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample.</ArticleTitle><Pagination><MedlinePgn>040701</MedlinePgn></Pagination><Abstract><AbstractText>The three-component mixture showing the V-shaped switching in a rubbing cell is investigated using a temperature gradient cell (TGC) where the epitaxial method of alignment, but without an alignment layer, is used. The molecular alignment and the switching characteristics in a TGC are compared with the rubbing sandwich and the open cells. The uniform or the twisted state is observed in the TGC, depending on the surface condition whether indium-tin oxide (ITO) or glass, while the uniformlike state with the average optical axis parallel to the smectic layer normal emerges only in the rubbing cell. The cancellation of the surface polarization charges by the surface free charges on the ITO surfaces determines the molecular alignment state in the TGC. From these results, we conclude that the nonpolar in-plane anchoring plays an important role in giving a uniformlike state in the rubbing cell.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Seomun</LastName><ForeName>S S</ForeName><Initials>SS</Initials><Affiliation>Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland.</Affiliation></Author><Author ValidYN="Y"><LastName>Panov</LastName><ForeName>V P</ForeName><Initials>VP</Initials></Author><Author ValidYN="Y"><LastName>Vij</LastName><ForeName>J K</ForeName><Initials>JK</Initials></Author><Author ValidYN="Y"><LastName>Fukuda</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Otón</LastName><ForeName>J M</ForeName><Initials>JM</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2001</Year><Month>09</Month><Day>25</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Phys Rev E Stat Nonlin Soft Matter Phys</MedlineTA><NlmUniqueID>101136452</NlmUniqueID><ISSNLinking>1539-3755</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2001</Year><Month>11</Month><Day>3</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2001</Year><Month>11</Month><Day>3</Day><Hour>10</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="received"><Year>2001</Year><Month>Apr</Month><Day>6</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2001</Year><Month>Sep</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2001</Year><Month>11</Month><Day>3</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">11690000</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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