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| [[Image:smectic_fused.png|Smectic phase of the fused hard sphere model. |thumb|right]] | | [[Image:smectic_fused.png|Smectic phase of the fused hard sphere model. |thumb|right]] |
| '''Smectic''' (from the Latin ''smecticus'' - "having the properties of soap" <ref>[http://www.merriam-webster.com/dictionary/smectic Merriam-Webster]</ref>). All of the smectic phases
| | The smectic phase has both orientational and positional order. |
| are layered, belonging to the <math>G_1^3</math> symmetry group.
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| ==Smectic A phase==
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| In the smectic-A phase each layer is a 2-dimensional liquid, having the symmetry <math>D_\infty</math> in the Schoenflies notation.
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| <ref>[http://dx.doi.org/10.1103/PhysRevA.4.1238 W. L. McMillan "Simple Molecular Model for the Smectic A Phase of Liquid Crystals", Physical Review A '''4''' pp. 1238-1246 (1971)]</ref>
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| <ref>[http://dx.doi.org/10.1016/j.molliq.2013.11.001 Prabir K. Mukherjee "Isotropic to smectic-A phase transition: A review", Journal of Molecular Liquids (In Press) (2013)]</ref>
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| ==Smectic B phase==
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| ==Smectic C phase==
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| The smectic-C phase has the monoclinic symmetry <math>C_{\rm 2h}</math>. | |
| ==Smectic E phase==
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| ==Smectic F phase==
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| ==References== | | ==References== |
| <references/>
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| ;Related reading
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| *[http://www.oup.com/us/catalog/general/subject/Physics/MaterialsScience/?view=usa&ci=9780198517856 Pierre-Gilles De Gennes and J. Prost "Physics of Liquid Crystals" (1995)]
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| *[http://dx.doi.org/10.1002/cphc.200500472 Jan P. F. Lagerwall and Frank Giesselmann "Current Topics in Smectic Liquid Crystal Research", ChemPhysChem '''7''' pp. 20-45 (2006)]
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| [[category: liquid crystals]] | | [[category: liquid crystals]] |