Linked Life Data

15447307

Source:http://linkedlifedata.com/resource/pubmed/id/15447307

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2004-9-27
pubmed:abstractText
We present a high-resolution study of the isotropic to nematic phase transition of a low birefringence liquid-crystal compound incorporating an aerosil gel. Calorimetry, light scattering, and microscopy data coherently combine to allow for an accurate determination of the temperature dependence of the onset of the nematic state. The nematic order develops on cooling through two distinct processes while the nematic correlation length mildly decreases. We understand the doubling of the phase transition as due to a crossover from a random-dilution regime, where the silica gel couples to the scalar part of the nematic order parameter, to a low-T random-field regime, where the coupling induces distortions in the director field.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
127801
pubmed:year
2004
pubmed:articleTitle
Isotropic to nematic transition of aerosil-disordered liquid crystals.
pubmed:affiliation
INFM, Dipartimento di Chimica, Biochimica e Biotecnologie per la Medicina, Università di Milano, Milan, Italy.
pubmed:publicationType
Journal Article