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Science 13 December 1991:
Vol. 254. no. 5038, pp. 1616 - 1618
DOI: 10.1126/science.254.5038.1616
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Articles

Morphology and Local Structure in Labyrinthine Stripe Domain Phase

M. SEUL 1, L. R. MONAR 1, L. O'GORMAN 1, and R. WOLFE 1

1 AT&T Bell Laboratories, Murray Hill, NJ 07974

Analysis of globally disordered, nonequilibrium "labyrinthine" stripe-domain patterns in thin ferrimagnetic garnet films has revealed a well-defined local structure containing an oblong polygonal plaquette as the fundamental motif. Two types of labyrinths were found: one having topological defects, the other composed of a single, unbranched, meandering line. These patterns emerge when the labyrinthine state is approached either by heating at constant magnetic field or by demagnetizing from saturation at constant temperature. Size and aspect ratios of the oblong polygonal plaquettes prove to be independent of the choice of these two mutually orthogonal trajectories within the phase diagram, which is surprising in view of the different mechanisms and concomitant topological constraints governing the evolution of disorder. The significance of this unique local structure is discussed in the general context of defectmediated melting of two-dimensional stripe phases.

Submitted on July 3, 1991
Accepted on September 17, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Domain Shapes and Patterns: The Phenomenology of Modulated Phases.
M. Seul and D. Andelman (1995)
Science 267, 476-483
   Abstract »    PDF »
Scale Transformation of Magnetic "Bubble" Arrays: Coupling of Topological Disorder and Polydispersity.
M. Seul and C. A. Murray (1993)
Science 262, 558-560
   Abstract »    PDF »
Labyrinthine Pattern Formation in Magnetic Fluids.
A. J. Dickstein, S. Erramilli, R. E. Goldstein, D. P. Jackson, and S. A. Langer (1993)
Science 261, 1012-1015
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)