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Effects of long range van der Waals forces on the anchoring of a nematic fluid at an interface
We consider theoretically the interface between a nematic fluid and a uniaxial solid: The long range part of the van der Waals interaction between the two gives rise to torques in the fluid, and favors an alignment of the nematic molecules parallel to the optical axis of the solid. The torques decre...
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| Published in: | Journal of colloid and interface science 1976, Vol.57 (3), p.403-410 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c319t-ba353b3a34d1ca6b77bd12d5a791b1bcaaf70a21fef53e1fd7cc76c3b3be44a53 |
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| cites | cdi_FETCH-LOGICAL-c319t-ba353b3a34d1ca6b77bd12d5a791b1bcaaf70a21fef53e1fd7cc76c3b3be44a53 |
| container_end_page | 410 |
| container_issue | 3 |
| container_start_page | 403 |
| container_title | Journal of colloid and interface science |
| container_volume | 57 |
| creator | Dubois-Violette, E De Gennes, P.G |
| description | We consider theoretically the interface between a nematic fluid and a uniaxial solid: The long range part of the van der Waals interaction between the two gives rise to torques in the fluid, and favors an alignment of the nematic molecules parallel to the optical axis of the solid. The torques decrease like
Z
−3 in the nonretarded limit, and have a more complicated decay when retardation is important. We make a complete calculation of the distortions in the nematic near the interface for both cases and find that retardation effects must be included to get convergent results when the solid and the nematic are very close. Our calculations may be of some use to discuss the anchoring of the nematic near the interface, if the solid is masked by a thin (100 Å) layer of amorphous material, or if there is an air gap (∼1000 Å). |
| doi_str_mv | 10.1016/0021-9797(76)90219-8 |
| format | article |
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Z
−3 in the nonretarded limit, and have a more complicated decay when retardation is important. We make a complete calculation of the distortions in the nematic near the interface for both cases and find that retardation effects must be included to get convergent results when the solid and the nematic are very close. Our calculations may be of some use to discuss the anchoring of the nematic near the interface, if the solid is masked by a thin (100 Å) layer of amorphous material, or if there is an air gap (∼1000 Å).</description><identifier>ISSN: 0021-9797</identifier><identifier>EISSN: 1095-7103</identifier><identifier>DOI: 10.1016/0021-9797(76)90219-8</identifier><language>eng</language><publisher>Elsevier Inc</publisher><subject>Condensed Matter ; Physics</subject><ispartof>Journal of colloid and interface science, 1976, Vol.57 (3), p.403-410</ispartof><rights>1976</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-ba353b3a34d1ca6b77bd12d5a791b1bcaaf70a21fef53e1fd7cc76c3b3be44a53</citedby><cites>FETCH-LOGICAL-c319t-ba353b3a34d1ca6b77bd12d5a791b1bcaaf70a21fef53e1fd7cc76c3b3be44a53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0021979776902198$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3387,3542,4010,27900,27901,27902,45958,45979</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04900658$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Dubois-Violette, E</creatorcontrib><creatorcontrib>De Gennes, P.G</creatorcontrib><title>Effects of long range van der Waals forces on the anchoring of a nematic fluid at an interface</title><title>Journal of colloid and interface science</title><description>We consider theoretically the interface between a nematic fluid and a uniaxial solid: The long range part of the van der Waals interaction between the two gives rise to torques in the fluid, and favors an alignment of the nematic molecules parallel to the optical axis of the solid. The torques decrease like
Z
−3 in the nonretarded limit, and have a more complicated decay when retardation is important. We make a complete calculation of the distortions in the nematic near the interface for both cases and find that retardation effects must be included to get convergent results when the solid and the nematic are very close. Our calculations may be of some use to discuss the anchoring of the nematic near the interface, if the solid is masked by a thin (100 Å) layer of amorphous material, or if there is an air gap (∼1000 Å).</description><subject>Condensed Matter</subject><subject>Physics</subject><issn>0021-9797</issn><issn>1095-7103</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1976</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKv_wEOO9rCa6X6kuQilVCsUvCjeDLPJpI1ss5JdC_57s1Z69DRk8rwvzMPYNYhbEFDdCTGFTEklb2Q1UemhstkJG4FQZSZB5KdsdETO2UXXfQgBUJZqxN6XzpHpO9463rRhwyOGDfE9Bm4p8jfEpuOujYYSEni_JY7BbNvoE5syyAPtsPeGu-bLW459-uc-9BQdGrpkZy410NXfHLPXh-XLYpWtnx-fFvN1ZnJQfVZjXuZ1jnlhwWBVS1lbmNoSpYIaaoPopMApOHJlTuCsNEZWJkVqKgos8zGbHHq32OjP6HcYv3WLXq_maz3sRKGEqMrZHhJbHFgT266L5I4BEHrwqQdZepClZaV_fepZit0fYpTu2HuKujOegiHrYzKobev_L_gBY218kQ</recordid><startdate>1976</startdate><enddate>1976</enddate><creator>Dubois-Violette, E</creator><creator>De Gennes, P.G</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope></search><sort><creationdate>1976</creationdate><title>Effects of long range van der Waals forces on the anchoring of a nematic fluid at an interface</title><author>Dubois-Violette, E ; De Gennes, P.G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-ba353b3a34d1ca6b77bd12d5a791b1bcaaf70a21fef53e1fd7cc76c3b3be44a53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1976</creationdate><topic>Condensed Matter</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dubois-Violette, E</creatorcontrib><creatorcontrib>De Gennes, P.G</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of colloid and interface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dubois-Violette, E</au><au>De Gennes, P.G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of long range van der Waals forces on the anchoring of a nematic fluid at an interface</atitle><jtitle>Journal of colloid and interface science</jtitle><date>1976</date><risdate>1976</risdate><volume>57</volume><issue>3</issue><spage>403</spage><epage>410</epage><pages>403-410</pages><issn>0021-9797</issn><eissn>1095-7103</eissn><abstract>We consider theoretically the interface between a nematic fluid and a uniaxial solid: The long range part of the van der Waals interaction between the two gives rise to torques in the fluid, and favors an alignment of the nematic molecules parallel to the optical axis of the solid. The torques decrease like
Z
−3 in the nonretarded limit, and have a more complicated decay when retardation is important. We make a complete calculation of the distortions in the nematic near the interface for both cases and find that retardation effects must be included to get convergent results when the solid and the nematic are very close. Our calculations may be of some use to discuss the anchoring of the nematic near the interface, if the solid is masked by a thin (100 Å) layer of amorphous material, or if there is an air gap (∼1000 Å).</abstract><pub>Elsevier Inc</pub><doi>10.1016/0021-9797(76)90219-8</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-9797 |
| ispartof | Journal of colloid and interface science, 1976, Vol.57 (3), p.403-410 |
| issn | 0021-9797 1095-7103 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_04900658v1 |
| source | Backfile Package - Materials Science [YMS]; Backfile Package - Chemical Engineering (Legacy) [YCC] |
| subjects | Condensed Matter Physics |
| title | Effects of long range van der Waals forces on the anchoring of a nematic fluid at an interface |
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