Physics of liquid crystals embedded in silica gels
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/8275 |
| _version_ | 1811084372948811776 |
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| author | Park, Sungil, 1967- |
| author2 | Robert J. Birgeneau. |
| author_facet | Robert J. Birgeneau. Park, Sungil, 1967- |
| author_sort | Park, Sungil, 1967- |
| collection | MIT |
| description | Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001. |
| first_indexed | 2024-09-23T12:49:41Z |
| format | Thesis |
| id | mit-1721.1/8275 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T12:49:41Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/82752019-04-12T20:33:48Z Physics of liquid crystals embedded in silica gels Park, Sungil, 1967- Robert J. Birgeneau. Massachusetts Institute of Technology. Dept. of Physics. Massachusetts Institute of Technology. Dept. of Physics. Physics. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001. Includes bibliographical references (p. 127-130). Octylcyanobiphenyl (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. by Sungil Park. Ph.D. 2005-08-23T18:48:59Z 2005-08-23T18:48:59Z 2001 2001 Thesis http://hdl.handle.net/1721.1/8275 50407138 eng M.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. http://dspace.mit.edu/handle/1721.1/7582 130 p. 7871755 bytes 7871513 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Physics. Park, Sungil, 1967- Physics of liquid crystals embedded in silica gels |
| title | Physics of liquid crystals embedded in silica gels |
| title_full | Physics of liquid crystals embedded in silica gels |
| title_fullStr | Physics of liquid crystals embedded in silica gels |
| title_full_unstemmed | Physics of liquid crystals embedded in silica gels |
| title_short | Physics of liquid crystals embedded in silica gels |
| title_sort | physics of liquid crystals embedded in silica gels |
| topic | Physics. |
| url | http://hdl.handle.net/1721.1/8275 |
| work_keys_str_mv | AT parksungil1967 physicsofliquidcrystalsembeddedinsilicagels |