Excitations of domain walls pinned at F/AF interface steps

We study rigid displacement excitations of a Neel wall of a thin uniaxial ferromagnetic film on a two-sublattice antiferromagnetic substrate. An interface step defect pins the domain wall and provides the restoring force that stabilizes the domain wall oscillations. The frequency of the rigid displa...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2000-09, Vol.36 (5), p.3053-3055
Main Authors: Dantas, A.L., Carrico, A.S.
Format: Article
Language:English
Subjects:
Antiferromagnetic materials
Audio frequencies
Chromium
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Displacement
Domain walls
Exact sciences and technology
Excitation
Ferromagnetic films
Iron
Magnetic domain walls
Magnetic domains
Magnetic films
Magnetic moments
Magnetic properties
Magnetic properties and materials
Magnetic properties of monolayers and thin films
Magnetic properties of surface, thin films and multilayers
Magnetism
Oscillations
Physics
Pins
Renovating
Substrates
Walls
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Summary:We study rigid displacement excitations of a Neel wall of a thin uniaxial ferromagnetic film on a two-sublattice antiferromagnetic substrate. An interface step defect pins the domain wall and provides the restoring force that stabilizes the domain wall oscillations. The frequency of the rigid displacement domain wall modes is shown to be of the same order of magnitude as that of the uniform domain modes of the ferromagnetic film, for a wide range of interface exchange energy values.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.908676