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Translational self-diffusion in the smectic phases of ferroelectric liquid crystals: an overview
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0002-6524-1441
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2012 (English)In: Phase Transitions, ISSN 0141-1594, Vol. 85, no 10, 861-871 p.Article in journal (Refereed) Published
Abstract [en]

In this work, we present our recent results obtained in the field of translational self-diffusion studies by means of H-1 NMR diffusometry in smectic phases formed by calamitic chiral liquid crystals. In particular, the diffusional behavior of chiral smectic phases with different clinicity, such as the ferroelectric and antiferroelectric phases, will be discussed on the basis of the results obtained on three different chiral smectogens. This research demonstrates that, despite previous assertions, out-of-plane translational diffusion in smectic phases is poorly affected by the clinicity of the phases, showing no discontinuity at the transition from synclinic to anticlinic structures, typical of the smectic C* phases. We can conclude that diffusion basically reflects the layered smectic structure where in-plane diffusion is much faster and less hindered than the out-of-plane one.

Place, publisher, year, edition, pages
2012. Vol. 85, no 10, 861-871 p.
Keyword [en]
liquid crystals, synclinic, anticlinic, diffusion, H-1 NMR, magnetic field, ferroelectric, anisotropy, smectic, chiral
National Category
Physical Chemistry
URN: urn:nbn:se:kth:diva-104285DOI: 10.1080/01411594.2012.687737ISI: 000309126000003ScopusID: 2-s2.0-84866705141OAI: diva2:565219

QC 20121106

Available from: 2012-11-06 Created: 2012-10-31 Last updated: 2012-11-06Bibliographically approved

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Dvinskikh, Sergey V.
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