Noncollinear magnetism caused by intermixing at ferromagnetic/antiferromagnetic interfaces

• Fe-Cr alloy layers on Fe(001) substrates with different atomic environments are theoretically investigated through a self-consistent real-space tight-binding method parametrized to density functional theory and without collinear restriction for the spin directions. We show that the intermixing at the Cr/Fe interface, experimentally observed at the first stages of the Cr growth on Fe, originates noncollinear magnetic arrangements within the system and even induces magnetic walls in the Fe layer with a magnetic domain close to the interface. A different behavior is shown if steps are present at the interface; i.e., noncollinear magnetism becomes more localized and the induced magnetic wall in Fe vanishes.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

Physics

Fysik

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