Nanometer-size magnetic domains and coherent magnetization reversal in a giant exchange-bias system

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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The role of magnetic domains and domain walls in exchange bias has stimulated much contemporary deliberation. Here we present compelling evidence obtained with small-angle scattering of unpolarized- and polarized-neutron beams that magnetization reversal occurs via formation of 10-100s nm-sized magnetic domains in an exchange-biased DyFe2/YFe2 superlattice. The reversal mechanism is observed to involve rotation of magnetization in and out of the sample plane. Remarkably, the domains are arranged in a quasiperiodic manner in the plane of the sample. The length scale of domain formation is similar to that of structural defects at the seed-layer-superlattice interface.
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2011
Volume84
Issue6
Pages064420
ISSN1098-0121
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 9

Keywords

  • Superconducting materials
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