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ZB 10 - Soft Condensed Matter (R. Holyst)

We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!

Publication

Smectic meniscus and dislocations

Author(s): Geminard, JC and Holyst, R and Oswald, P
Title: Smectic meniscus and dislocations
Abstract: In ordinary liquids the size of a meniscus and its shape is set by a between surface tension and gravity. The thermodynamical of its creation can be reversible. On the contrary, in smectic crystals the formation of the meniscus is always an irreversible process since it involves the creation of dislocations it involves friction). Also the meniscus is usually small in with smectics in comparison to the capillary length and the gravity does not play any role in determining the meniscus Here we discuss the relation between dislocations and meniscus in The theoretical predictions are supported by a recent performed on freely suspended films of smectic liquid In this experiment the measurement of the meniscus radius of gives the pressure difference, ap, according to the Laplace From the measurements of the growth dynamics of a dislocation loop by Delta p) we find the line tension (similar to 8 x 10(-8) and the mobility of an elementary edge dislocation (similar to 4 x 10(-7) cm(2) s/g).
Pages: 1737-1747
Journal: ACTA PHYSICA POLONICA B
Volume: 29
ID: ISI:000074271600016
Year: 1998