Dynamics of a paramagnetic colloidal particle driven on a magnetic-bubble lattice
| العنوان: | Dynamics of a paramagnetic colloidal particle driven on a magnetic-bubble lattice |
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| المؤلفون: | Thomas M. Fischer, Alejandro Soba, Francesc Sagués, Pietro Tierno |
| المساهمون: | Universitat de Barcelona |
| المصدر: | Dipòsit Digital de la UB Universidad de Barcelona Recercat. Dipósit de la Recerca de Catalunya instname |
| بيانات النشر: | American Physical Society (APS), 2008. |
| سنة النشر: | 2008 |
| مصطلحات موضوعية: | Physics, Condensed matter physics, Sistemes no lineals, Aparells electrònics, Bubble, Magnetic devices, Microelectrònica, Dispositius magnètics, Magnetic field, Colloid, Paramagnetism, Delocalized electron, Microelectronics, Physical chemistry, Colloidal particle, Lattice (order), Química física, Nonlinear systems, Thermodynamics, Electronic apparatus and appliances, Statistical physics, Física estadística, Randomness |
| الوصف: | We present a theoretical study of the recently observed dynamical regimes of paramagnetic colloidal particles externally driven above a regular lattice of magnetic bubbles [P. Tierno, T. H. Johansen, and T. M. Fischer, Phys. Rev. Lett. 99, 038303 (2007)]. An external precessing magnetic field alters the potential generated by the surface of the film in such a way to either drive the particle circularly around one bubble, ballistically through the array, or in triangular orbits on the interstitial regions between the bubbles. In the ballistic regime, we observe different trajectories performed by the particles phase locked with the external driving. Superdiffusive motion, which was experimentally found bridging the localized and delocalized dynamics, emerge only by introducing a certain degree of randomness into the bubbles size distribution. |
| وصف الملف: | application/pdf |
| تدمد: | 1550-2376 1539-3755 |
| DOI: | 10.1103/physreve.77.060401 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::241e575c4033021bd7a8373ae0ba25c3 https://doi.org/10.1103/physreve.77.060401 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....241e575c4033021bd7a8373ae0ba25c3 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15502376 15393755 |
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| DOI: | 10.1103/physreve.77.060401 |