Renormalization in charged colloids: non-monotonic behaviour with the surface charge
- Haro-Pérez, C. Grupo de Física de Fluidos y Biocoloides Departamento de Física, Facultad de Ciencias, University of Granada, Spain
- Quesada-Pérez, M. Departmento de Física, Escuela Politécnica Superior de Linares, University of Jaén, Spain
- Callejas-Fernández, J. Grupo de Física de Fluidos y Biocoloides Departamento de Física, Facultad de Ciencias, University of Granada, Spain
- Schurtenberger, Peter Department of Physics, University of Fribourg, Switzerland
- Hidalgo-Álvarez, R. Grupo de Física de Fluidos y Biocoloides Departamento de Física, Facultad de Ciencias, University of Granada, Spain
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28.06.2006
Published in:
- Journal of Physics: Condensed Matter. - 2006, vol. 18, p. L363-L369
English
The static structure factor S(q) is measured for a set of deionized latex dispersions with different numbers of ionizable surface groups per particle and similar diameters. For a given volume fraction, the height of the main peak of S(q), which is a direct measure of the spatial ordering of latex particles, does not increase monotonically with the number of ionizable groups. This behaviour cannot be described using the classical renormalization scheme based on the cell model. We analyse our experimental data using a renormalization model based on the jellium approximation, which predicts the weakening of the spatial order for moderate and large particle charges.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 5981
- DOI 10.1088/0953-8984/18/28/L01
- Persistent URL
- https://folia.unifr.ch/unifr/documents/299973
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