Inversion in the change of the refractive index and memory effect near the nematic-isotropic phase transition in a lyotropic liquid crystal

This work demonstrates the occurrence of dn/dT inversion from negative to positive near the nematic-isotropic phase transition in a lyotropic liquid crystal. It is suggested that this effect can be attributed to a sudden increase of the electronic polarizability due to a change in the micelle shape...

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Veröffentlicht in:Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. - 1993. - 61(2000), 5 Pt A vom: 05. Mai, Seite 5410-3
1. Verfasser: Pereira, J R (VerfasserIn)
Weitere Verfasser: Palangana, A J, Mansanares, A M, da Silva, E C, Bento, A C, Baesso, M L
Format: Aufsatz
Sprache:English
Veröffentlicht: 2000
Zugriff auf das übergeordnete Werk:Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Lauric Acids Water 059QF0KO0R lauric acid 1160N9NU9U
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520 |a This work demonstrates the occurrence of dn/dT inversion from negative to positive near the nematic-isotropic phase transition in a lyotropic liquid crystal. It is suggested that this effect can be attributed to a sudden increase of the electronic polarizability due to a change in the micelle shape near this phase transition. Formation of a long lasting lenslike element within the sample when it is irradiated at moderately high laser powers is also reported. This permanent lens is erasable by increasing the temperature above the nematic-isotropic transition temperature 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Palangana, A J  |e verfasserin  |4 aut 
700 1 |a Mansanares, A M  |e verfasserin  |4 aut 
700 1 |a da Silva, E C  |e verfasserin  |4 aut 
700 1 |a Bento, A C  |e verfasserin  |4 aut 
700 1 |a Baesso, M L  |e verfasserin  |4 aut 
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