Strong interlayer coupling in CoO/NiO antiferromagnetic superlattices
1993; American Physical Society; Volume: 47; Issue: 15 Linguagem: Inglês
10.1103/physrevb.47.9952
ISSN1095-3795
AutoresM. J. Carey, A. E. Berkowitz, J. A. Borchers, R. W. Erwin,
Tópico(s)Advanced Condensed Matter Physics
ResumoA strong interlayer-exchange interaction is observed in short-repeat-distance CoO/NiO superlattices. This was investigated by measuring the exchange-anisotropy properties of superlattice CoO/NiO/${\mathrm{Ni}}_{81}$${\mathrm{Fe}}_{19}$ exchange couples and by examining NiO/CoO superlattices with neutron diffraction. Short-repeat-distance superlattices show a single ordering temperature which depends only on the [CoO]:[NiO] ratio. The magnetocrystalline anisotropy of the monoxide layers is strongly influenced by the interlayer coupling.
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