Sökning: L773:0015 0193 OR L773:1563 5112 >
Chiral smectic C su...
Chiral smectic C subphases induced by mixing a bistereogenic antiferroelectric liquid crystal with a non-chiral liquid crystal
-
- Lagerwall, J. P. F. (författare)
- Universität Stuttgart,University of Stuttgart
-
- Giesselmann, Frank (författare)
- Universität Stuttgart,University of Stuttgart
-
- Rauch, Sebastien (författare)
- Technische Universität Berlin
-
visa fler...
-
- Heppke, Gerd (författare)
- Technische Universität Berlin
-
- Rudquist, Per, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Lagerwall, Sven, 1934 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa färre...
-
(creator_code:org_t)
- Informa UK Limited, 2005
- 2005
- Engelska.
-
Ingår i: Ferroelectrics. - : Informa UK Limited. - 0015-0193 .- 1563-5112. ; 315, s. 221-230
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://orbilu.uni.l...
-
https://doi.org/10.1...
-
https://research.cha...
-
visa färre...
Abstract
Ämnesord
Stäng
- By mixing a bistereogenic antiferroelectric liquid crystal (AFLC) compound, exhibiting only the SmQ* and SmC a * mesophases, with the achiral N-SmC liquid crystal HOAB we could induce all three AFLC SmC-type subphases, SmC α *, SmC β * and SmC γ *. This seems to be in contradiction with two recent postulations regarding the subphase stability, one of which suggests that the subphases appear as a result of strong chiral interactions, the other that these phases require high smectic order, something one would generally not expect in mixtures. We have studied the helical pitch, optical tilt angle, spontaneous polarization and the x-ray diffraction due to the smectic layering, as a function of mixing ratio in order to better understand the relation between phase sequence and mixture composition. The smectic layer spacing shows a strongly non-linear behavior, suggesting that the basic structure of the pure AFLC substance is retained up to a HOAB content of about 75%.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- antiferroelectric liquid crystals
- smectic layer spacing
- chirality
- smectic order
- chiral smectic C subphases
- liquid crystal mixtures
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas