4.6 Article

Giant in-plane magnetic anisotropy in epitaxial bcc Co/Fe(110) bilayers

Journal

PHYSICAL REVIEW B
Volume 94, Issue 1, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.94.014402

Keywords

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Funding

  1. EU European Regional Development Fund, OP IE
  2. Scientific Exchange Programme NMS-CH (SCIEX) project
  3. TEAM Program of the Foundation for Polish Science
  4. EU European Regional Development Fund
  5. Marian Smoluchowski Krakow Research Consortium (the Leading National Research Centre, KNOW)
  6. Polish Ministry of Science and Higher Education

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We report on in-plane magnetic anisotropy in epitaxial bcc Co/Fe(110) bilayers on W(110). The magnetic surface anisotropy in the Co/Fe(110) bilayers exhibited a strong nonmonotonic dependence on Co coverage. Magneto-optical studies revealed a sharp maximum of the magnetic surface anisotropy, 2.44 mJ/m(2), at d(Co) = 5 angstrom. This giant interfacial magnetic anisotropy allowed a small fraction of a Co monolayer to reorient the magnetization of the bulk-like Fe film. We conclude that the mono- and double-layer bcc Co(110) exhibited in-plane magnetic anisotropy with a [1 (1) over bar0] easy axis.

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