| Autor: |
B K, McCoy, Z Q, Liu, S T, Wang, Lidong, Pan, Shun, Wang, H T, Nguyen, R, Pindak, C C, Huang |
| Rok vydání: |
2008 |
| Zdroj: |
Physical review. E, Statistical, nonlinear, and soft matter physics. 77(6 Pt 1) |
| ISSN: |
1539-3755 |
| Popis: |
The compound 10OHF has a partially inverted phase sequence, unique among the series of nOHF homologous compounds and all other known liquid crystals, with the smectic-C*FI2 (SmC*FI2) phase occurring at higher temperature than the smectic-C* (SmC*) phase. We present ellipsometric data to identify the phase sequences of 9OHF, 10OHF, 11OHF, and 12OHF. Binary mixtures of 10OHF with C11, a compound with the typical phase sequence among the smectic phases, show that the unusual phase sequence of 10OHF stabilizes upon mixing and that SmC*FI2 predominates over SmC* throughout the entire mixing phase diagram. In thin films of some mixtures, surface interactions induce a reentrant SmC*FI2-SmC*-SmC*FI2 transition in the rest of the film. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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