Novel convective instabilities in a magnetic fluid

    Authors

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

    Comments

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    Abbreviated Journal Title

    Phys. Rev. Lett.

    Keywords

    PARAMAGNETIC FLUIDS; FERROFLUIDS; Physics, Multidisciplinary

    Abstract

    A field induced novel instability was observed in a horizontal magnetic fluid layer placed in a uniform vertical magnetic field with a focused laser beam parallel to the field passing through the layer. The unstable diffraction patterns include triangles and other polygons. We found that the critical field for the onset of this instability increases with increasing the thickness of the layer. These results are consistent with our linear stability analysis. A new bifurcation was also observed when an additional horizontal held was applied.

    Journal Title

    Physical Review Letters

    Volume

    82

    Issue/Number

    20

    Publication Date

    1-1-1999

    Document Type

    Article

    Language

    English

    First Page

    4134

    Last Page

    4137

    WOS Identifier

    WOS:000080319900053

    ISSN

    0031-9007

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