| Autor: |
Sütterlin, K. Robert, Thomas, Hubertus M., Ivlev, Alexei V., Morfill, Gregor E., Fortov, Vladimir E., Lipaev, Andrey M., Molotkov, Vladimir I., Petrov, Oleg F., Wysocki, Adam, Löwen, Hartmut |
| Předmět: |
|
| Zdroj: |
IEEE Transactions on Plasma Science; Apr2010 Part 3, Vol. 38 Issue 4, p861-868, 8p |
| Abstrakt: |
We conducted a series of experiments to study lane formation in complex plasma, using the PK-3 Plus Laboratory in the International Space Station. In our experiments, small (driven) microparticles penetrate into a cloud of large (background) particles, revealing a strong tendency toward lane formation: When the driving force is strong enough, particles of both sorts form interpenetrating lines. Typically, the lanes exhibit a considerable anisotropic structural order accompanied by an enhancement of their (unidirectional) mobility. Laning is quantified locally in terms of the anisotropic scaling index. Using a "nematic" order parameter, the observed time-resolved lane-formation process is compared to a set of computer simulations of a binary Yukawa model with Langevin dynamics. This not only yields a best fit but also reveals a strong influence of the initial experimental conditions on the dynamics of lane formation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
