Abstract
We studied orientational fluctuations in a smectic-C Langmuir monolayer. Our measurements of orientational correlations are in excellent agreement with theoretical predictions. In addition, we present the first measurements of orientational elasticity and viscosity in a two-dimensional system whose density can be varied. The orientational viscosity strongly depends on temperature and density, changing by more than an order of magnitude with a 2.5% increase in temperature or a 20% change in density. The orientational elasticity is only weakly dependent on temperature and density.
| Original language | English |
|---|---|
| Pages (from-to) | 1682-1685 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 79 |
| Issue number | 9 |
| Publication status | Published - 1997 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Orientational fluctuations in a two-dimensional smectic-C liquid crystal with variable density. / Feder, Aryeh; Tabe, Yuka; Mazur, Eric.
In: Physical Review Letters, Vol. 79, No. 9, 1997, p. 1682-1685.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Orientational fluctuations in a two-dimensional smectic-C liquid crystal with variable density
AU - Feder, Aryeh
AU - Tabe, Yuka
AU - Mazur, Eric
PY - 1997
Y1 - 1997
N2 - We studied orientational fluctuations in a smectic-C Langmuir monolayer. Our measurements of orientational correlations are in excellent agreement with theoretical predictions. In addition, we present the first measurements of orientational elasticity and viscosity in a two-dimensional system whose density can be varied. The orientational viscosity strongly depends on temperature and density, changing by more than an order of magnitude with a 2.5% increase in temperature or a 20% change in density. The orientational elasticity is only weakly dependent on temperature and density.
AB - We studied orientational fluctuations in a smectic-C Langmuir monolayer. Our measurements of orientational correlations are in excellent agreement with theoretical predictions. In addition, we present the first measurements of orientational elasticity and viscosity in a two-dimensional system whose density can be varied. The orientational viscosity strongly depends on temperature and density, changing by more than an order of magnitude with a 2.5% increase in temperature or a 20% change in density. The orientational elasticity is only weakly dependent on temperature and density.
UR - http://www.scopus.com/inward/record.url?scp=0004476312&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0004476312&partnerID=8YFLogxK
M3 - Article
VL - 79
SP - 1682
EP - 1685
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 9
ER -