Field-induced instabilities in a magnetic fluid

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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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