Pattern formation in colloidal explosions
| Type of Publication: | Journal article |
| Publication status: | Published |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-0-412634 |
| Author: | Straube, Arthur V.; Louis, Ard A.; Baumgartl, Jörg; Bechinger, Clemens; Dullens, Roel P. A. |
| Year of publication: | 2011 |
| Published in: | EPL : Europhysics Letters ; 94 (2011), 4. - 48008. - ISSN 0295-5075. - eISSN 1286-4854 |
| DOI (citable link): | https://dx.doi.org/10.1209/0295-5075/94/48008 |
| Summary: |
We study the non-equilibrium pattern formation that emerges when magnetically repelling colloids, trapped by optical tweezers, are abruptly released, forming colloidal explosions. For multiple colloids in a single trap we observe a pattern of expanding concentric rings. For colloids individually trapped in a line, we observe explosions with a zigzag pattern that persists even when magnetic interactions are much weaker than those that break the linear symmetry in equilibrium. Theory and computer simulations quantitatively describe these phenomena both in and out of equilibrium. An analysis of the mode spectrum allows us to accurately quantify the non-harmonic nature of the optical traps. Colloidal explosions provide a new way to generate well-characterized non-equilibrium behaviour in colloidal systems.
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| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
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STRAUBE, Arthur V., Ard A. LOUIS, Jörg BAUMGARTL, Clemens BECHINGER, Roel P. A. DULLENS, 2011. Pattern formation in colloidal explosions. In: EPL : Europhysics Letters. 94(4), 48008. ISSN 0295-5075. eISSN 1286-4854. Available under: doi: 10.1209/0295-5075/94/48008
@article{Straube2011-05-18Patte-39381, title={Pattern formation in colloidal explosions}, year={2011}, doi={10.1209/0295-5075/94/48008}, number={4}, volume={94}, issn={0295-5075}, journal={EPL : Europhysics Letters}, author={Straube, Arthur V. and Louis, Ard A. and Baumgartl, Jörg and Bechinger, Clemens and Dullens, Roel P. A.}, note={Article Number: 48008} }
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