English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the morphology of magnetic domain growth in disordered threedimensional magnets. The disordered magnetic material is described within therandom-field Ising model with a Gaussian distribution of local fields withwidth $\Delta$. Growth is driven by a uniform applied magnetic field, whosevalue is kept equal to the critical value $H_c(\Delta)$ for the onset of steadymotion. Two growth regimes are clearly identified. For low $\Delta$ the growingdomain is compact, with a self-affine external interface. For large $\Delta$ aself-similar percolation-like morphology is obtained. A multi-critical point at$(\Delta_c$, $H_c(\Delta_c))$ separates the two types of growth. We extract thecritical exponents near $\Delta_c$ using finite-size scaling of differentmorphological attributes of the external domain interface. We conjecture thatthe critical disorder width also corresponds to a maximum in $H_c(\Delta)$.Comment: 8 pages, 10 figures, submitted to Phys. Rev.

Morphology transitions in three-dimensional domain growth with Gaussian random fields