The variety of ordering transitions in liquids characterized by a locally favoured structure
Identifieur interne : 006296 ( Main/Exploration ); précédent : 006295; suivant : 006297The variety of ordering transitions in liquids characterized by a locally favoured structure
Auteurs : P. Ronceray ; P. Harrowell [Australie]Source :
- Europhysics Letters [ 0295-5075 ] ; 2011.
English descriptors
- KwdEn :
- Crystal structure, Crystalline order, Crystalline order parameter, Crystallization, Crystallization transition, Ecole normale, Favoured, Favoured structure, Flss, Global order, Ground state, Ground states, Lattice, Lattice model, Liquid structure, Local geometry, Local order, Local order parameter, Local structure, Local structures, Nearest neighbours, Pairwise interactions, Phase transition, Phys, Unit cell, Unit cell size.
- Teeft :
- Crystal structure, Crystalline order, Crystalline order parameter, Crystallization, Crystallization transition, Ecole normale, Favoured, Favoured structure, Flss, Global order, Ground state, Ground states, Lattice, Lattice model, Liquid structure, Local geometry, Local order, Local order parameter, Local structure, Local structures, Nearest neighbours, Pairwise interactions, Phase transition, Phys, Unit cell, Unit cell size.
Abstract
We present a new lattice model of liquids in which the energy of a configuration is determined by the local coordination environments rather than pairwise interactions. This model is used to explore how the accumulation of order on cooling depends on the geometry of the locally favoured structure. We find that, while high-symmetry local structures result in ordering that occurs predominantly via a thermodynamic freezing transition, liquids characterised by a low-symmetry local structure exhibit a significant increase in local order on cooling before crystallizing.
Url:
DOI: 10.1209/0295-5075/96/36005
Affiliations:
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This model is used to explore how the accumulation of order on cooling depends on the geometry of the locally favoured structure. We find that, while high-symmetry local structures result in ordering that occurs predominantly via a thermodynamic freezing transition, liquids characterised by a low-symmetry local structure exhibit a significant increase in local order on cooling before crystallizing.</div></front></TEI><affiliations><list><country><li>Australie</li></country></list><tree><noCountry><name sortKey="Ronceray, P" sort="Ronceray, P" uniqKey="Ronceray P" first="P." last="Ronceray">P. Ronceray</name></noCountry><country name="Australie"><noRegion><name sortKey="Harrowell, P" sort="Harrowell, P" uniqKey="Harrowell P" first="P." last="Harrowell">P. Harrowell</name></noRegion><name sortKey="Harrowell, P" sort="Harrowell, P" uniqKey="Harrowell P" first="P." last="Harrowell">P. Harrowell</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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