Linked Life Data

12947191

Source:http://linkedlifedata.com/resource/pubmed/id/12947191

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5637
pubmed:dateCreated
2003-8-29
pubmed:abstractText
Any polar-ordered material with a spatially uniform polarization field is internally frustrated: The symmetry-required local preference for polarization is to be nonuniform, i.e., to be locally bouquet-like or "splayed." However, it is impossible to achieve splay of a preferred sign everywhere in space unless appropriate defects are introduced into the field. Typically, in materials like ferroelectric crystals or liquid crystals, such defects are not thermally stable, so that the local preference is globally frustrated and the polarization field remains uniform. Here, we report a class of fluid polar smectic liquid crystals in which local splay prevails in the form of periodic supermolecular-scale polarization modulation stripes coupled to layer undulation waves. The polar domains are locally chiral, and organized into patterns of alternating handedness and polarity. The fluid-layer undulations enable an extraordinary menagerie of filament and planar structures that identify such phases.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
1095-9203
pubmed:author
pubmed:issnType
Electronic
pubmed:day
29
pubmed:volume
301
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1204-11
pubmed:dateRevised
2007-3-19
pubmed:year
2003
pubmed:articleTitle
Polarization-modulated smectic liquid crystal phases.
pubmed:affiliation
Department of Physics and Ferroelectric Liquid Crystal Materials Research Center, University of Colorado, Boulder, CO80309 - 0390, USA.
pubmed:publicationType
Journal Article