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dc.contributor.advisorRobert J. Birgeneau.en_US
dc.contributor.authorPark, Sungil, 1967-en_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Physics.en_US
dc.date.accessioned2005-08-23T18:48:59Z
dc.date.available2005-08-23T18:48:59Z
dc.date.copyright2001en_US
dc.date.issued2001en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/8275
dc.descriptionThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.en_US
dc.descriptionIncludes bibliographical references (p. 127-130).en_US
dc.description.abstractOctylcyanobiphenyl (8CB) embedded in silica aerosil gels have been studied by means of high resolution X-ray scattering experiments. The silica particles form a hydrogen-bonded fractal gel network that introduces quenched disorder. As a result, the nematic to smectic-A transition is replaced by the growth of static short range smectic correlations. The X-ray scattering profile has two contributions: a thermal fluctuation term which resembles that of the pure liquid crystal and a static fluctuation term due to the random field that becomes important at low temperatures. The decrease of the smectic correlations with increasing silica density is consistent with theory and other experiments.en_US
dc.description.statementofresponsibilityby Sungil Park.en_US
dc.format.extent130 p.en_US
dc.format.extent7871755 bytes
dc.format.extent7871513 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582
dc.subjectPhysics.en_US
dc.titlePhysics of liquid crystals embedded in silica gelsen_US
dc.typeThesisen_US
dc.description.degreePh.D.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physics
dc.identifier.oclc50407138en_US


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