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Exact asymptotic behavior of magnetic stripe domain arrays

Journal Article


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Abstract


  • The classical problem of magnetic stripe domain behavior in films and plates with uniaxial magnetic anisotropy is addressed. Exact analytical results are derived for the stripe domain widths as a function of applied perpendicular field H, in the regime where the domain period becomes large. The stripe period diverges as (H-c - H)(-1/2), where H-c is the critical (infinite period) field, an exact result confirming a previous conjecture. The magnetization approaches saturation as (H-c - H)(1/2), a behavior that compares excellently with experimental data obtained for a 4-mu m thick ferrite garnet film. The exact analytical solution provides a new basis for precise characterization of uniaxial magnetic films and plates, illustrated by a simple way to measure the domain wall energy. The mathematical approach is applicable for similar analysis of a wide class of systems with competing interactions where a stripe domain phase is formed. DOI: 10.1103/PhysRevB.87.060402

Publication Date


  • 2013

Citation


  • Johansen, T. H., Pan, A. V. & Galperin, Y. M. (2013). Exact asymptotic behavior of magnetic stripe domain arrays. Physical Review B: Condensed Matter and Materials Physics, 87 (6), 060402-1-060402-4.

Scopus Eid


  • 2-s2.0-84874512270

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1587&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/587

Has Global Citation Frequency


Start Page


  • 060402-1

End Page


  • 060402-4

Volume


  • 87

Issue


  • 6

Place Of Publication


  • United States

Abstract


  • The classical problem of magnetic stripe domain behavior in films and plates with uniaxial magnetic anisotropy is addressed. Exact analytical results are derived for the stripe domain widths as a function of applied perpendicular field H, in the regime where the domain period becomes large. The stripe period diverges as (H-c - H)(-1/2), where H-c is the critical (infinite period) field, an exact result confirming a previous conjecture. The magnetization approaches saturation as (H-c - H)(1/2), a behavior that compares excellently with experimental data obtained for a 4-mu m thick ferrite garnet film. The exact analytical solution provides a new basis for precise characterization of uniaxial magnetic films and plates, illustrated by a simple way to measure the domain wall energy. The mathematical approach is applicable for similar analysis of a wide class of systems with competing interactions where a stripe domain phase is formed. DOI: 10.1103/PhysRevB.87.060402

Publication Date


  • 2013

Citation


  • Johansen, T. H., Pan, A. V. & Galperin, Y. M. (2013). Exact asymptotic behavior of magnetic stripe domain arrays. Physical Review B: Condensed Matter and Materials Physics, 87 (6), 060402-1-060402-4.

Scopus Eid


  • 2-s2.0-84874512270

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1587&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/587

Has Global Citation Frequency


Start Page


  • 060402-1

End Page


  • 060402-4

Volume


  • 87

Issue


  • 6

Place Of Publication


  • United States