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Magnetic Liquid Patterns in Space and Time

Title data

Richter, Reinhard ; Reimann, Bert ; Lange, Adrian ; Rupp, Peter ; Rothert, Alexander:
Magnetic Liquid Patterns in Space and Time.
In: Advances in Solid State Physics. Vol. 43 (2003) . - pp. 789-800.
ISSN 1438-4329
DOI: https://doi.org/10.1007/978-3-540-44838-9_56

Abstract in another language

Macroscopic surface patterns of magnetic fluids are experimentally investigated for four different configurations of the liquid layer, and the orientation, homogeneity and temporal evolution of the magnetic field. Firstly the formation of surface undulations after a pulse-like application of the magnetic induction is examined. The wavenumbers measured for different magnetic induction are compared with the wavenumber of maximal growth predicted by linear stability analysis for the Rosensweig instability. Secondly, the formation of twin-peak patterns at the magnetic Faraday instability in an annular trough is reported. Thirdly, a ring of magnetic liquid spikes in a gradient magnetic field is periodically excited by an alternating magnetic field. The transition to spatio-temporal intermittency found in this way is characterized by power laws and their critical exponents. Eventually, we record the pinch-off of a magnetic liquid bridge by a high-speed camera. The temporal evolution of the neck radius is compared with results obtained theoretically via universal scaling functions.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 04 Oct 2018 12:07
Last Modified: 04 Oct 2018 12:07
URI: https://eref.uni-bayreuth.de/id/eprint/45958