Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres
| Type of Publication: | Journal article |
| Publication status: | Published |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-0-414968 |
| Author: | Baumgartl, Jörg; Dullens, Roel P. A.; Dijkstra, Marjolein; Roth, Roland; Bechinger, Clemens |
| Year of publication: | 2007 |
| Published in: | Physical Review Letters ; 98 (2007), 19. - 198303. - ISSN 0031-9007. - eISSN 1079-7114 |
| Pubmed ID: | 17677668 |
| ArXiv-ID: | arXiv:0704.0343v2 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevLett.98.198303 |
| Summary: |
Using confocal-microscopy we investigate the structure of binary mixtures of colloidal hard spheres with size ratio q=0.61. As a function of the packing fraction of the two particle species, we observe a marked change of the dominant wavelength in the pair correlation function. This behavior is in excellent agreement with a recently predicted structural crossover in such mixtures. In addition, the repercussions of structural crossover on the real-space structure of a binary fluid are analyzed. We suggest a relation between crossover and the lateral extension of networks containing only equally sized particles that are connected by nearest neighbor bonds. This is supported by Monte-Carlo simulations which are performed at different packing fractions and size ratios.
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| Subject (DDC): | 530 Physics |
| Link to License: | Terms of use |
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BAUMGARTL, Jörg, Roel P. A. DULLENS, Marjolein DIJKSTRA, Roland ROTH, Clemens BECHINGER, 2007. Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres. In: Physical Review Letters. 98(19), 198303. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.98.198303
@article{Baumgartl2007-04-03T08:26:02ZExper-39567, title={Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres}, year={2007}, doi={10.1103/PhysRevLett.98.198303}, number={19}, volume={98}, issn={0031-9007}, journal={Physical Review Letters}, author={Baumgartl, Jörg and Dullens, Roel P. A. and Dijkstra, Marjolein and Roth, Roland and Bechinger, Clemens}, note={Article Number: 198303} }
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