Exchange bias in spin-engineered double superlattices.
Exchange bias has been observed in sputtered magnetic double superlattices which consist of a ferromagnetically coupled superlattice grown on an antiferromagnetically (AF) coupled superlattice. This system exhibits a parallel domain wall, a spin flop transition, and exchange bias when the anisotropy is large in the AF block. This work shows that neither the domain wall nor the spin flop are directly related to exchange bias but that the anisotropy is essential.
Department of Physics and Astronomy, E. C. Stoner Laboratory, University of Leeds, United Kingdom. phypst@phys-irc.leeds.ac.uk
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Steadman
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Ali
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Hindmarch
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Marrows
B J
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Hickey
Sean
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Langridge
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Dalgliesh
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Foster