Dynamic Interference Patterns From Ferrofluids

    Authors

    T. D. Du;W. L. Luo

    Comments

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    Abbreviated Journal Title

    Mod. Phys. Lett. B

    Keywords

    Physics, Applied; Physics, Condensed Matter; Physics, Mathematical

    Abstract

    Time-dependent interference was observed above a critical magnetic field H-c1 in ferrofluids by a novel technique - magnetic thermal lens effect. The onset of the dynamics is associated with the formation of linear structures in the system. When a second critical field, H-c2, was reached, a lattice of quasi-periodic columns was observed by optical microscopy and random rotating patterns were replaced by stable rings, indicating ordering in the system. This technique provides a useful way to detect microstructures that are much smaller than the optical wave length thus unobservable by conventional optical technique. We found that the result crucially depends on boundary conditions.

    Journal Title

    Modern Physics Letters B

    Volume

    9

    Issue/Number

    25

    Publication Date

    1-1-1995

    Document Type

    Article

    Language

    English

    First Page

    1643

    Last Page

    1647

    WOS Identifier

    WOS:A1995TT68700003

    ISSN

    0217-9849

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