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Response of a ferrofluid to traveling-stripe forcing

Title data

Beetz, Achim ; Gollwitzer, Christian ; Richter, Reinhard ; Rehberg, Ingo:
Response of a ferrofluid to traveling-stripe forcing.
In: Journal of Physics: Condensed Matter. Vol. 20 (2008) Issue 20 . - 204109.
ISSN 1361-648X
DOI: https://doi.org/10.1088/0953-8984/20/20/204109

Abstract in another language

We observe the dynamics of waves propagating on the surface of a ferrofluid under the influence of a spatially and temporally modulated field. In particular, we excite plane waves by applying a traveling lamellar modulation of the magnetization. By means of this external driving, both the wavelength and the propagation velocity of the waves can be controlled. The amplitude of the excited waves exhibits a resonance phenomenon similar to that of a forced harmonic oscillator. Its analysis reveals the dispersion relation of the free surface waves, from which the critical magnetic field for the onset of the Rosensweig instability can be extrapolated.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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 > Former Professors
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Nonlinear Dynamics
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 26 Sep 2018 10:09
Last Modified: 21 Nov 2023 14:03
URI: https://eref.uni-bayreuth.de/id/eprint/42949