Title

Field-induced instabilities in a magnetic fluid

Authors

Authors

W. L. Luo; T. D. Du;J. Huang

Comments

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Abbreviated Journal Title

J. Magn. Magn. Mater.

Keywords

instability; pattern formation; nonlinear dynamics; magnetic fluids; thermal diffusion (Soret effect); non-linear optics; FERROFLUIDS; Materials Science, Multidisciplinary; Physics, Condensed Matter

Abstract

The coupling of an external magnetic field with the gradients of temperature and particle concentration in a magnetic fluid leads to a magnetic body force that tends to drive the fluid unstable. Our experiment shows that multiple instabilities can occur in the presence of an oblique magnetic field. The phase diagram for the critical field has been determined, which indicates that these instabilities are induced by the vertical component of the field. However, the multiple unstable states are primarily controlled by the horizontal component. The dynamics include traveling rolls, oscillating waves, and other temporal patterns. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Journal Title

Journal of Magnetism and Magnetic Materials

Volume

201

Publication Date

1-1-1999

Document Type

Article; Proceedings Paper

Language

English

First Page

88

Last Page

90

WOS Identifier

WOS:000081120800024

ISSN

0304-8853

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