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RESEARCH PRODUCT
Controlling the intralayer structure of Co/Pt superlattices
P. HaibachMichael HuthH. AdrianJ Köblesubject
Materials scienceKerr effectCondensed matter physicsSuperlatticePolishingchemistry.chemical_elementSputter depositionCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsMagnetizationTransition metalchemistryThin filmPlatinumdescription
Abstract The effect of the surface quality of MgO (1 1 1) substrates seeded by a 3 nm thick Pt layer on the intralayer and interlayer structure of Co/Pt (1 1 1) superlattices was investigated. The superlattices were grown by DC magnetron sputtering. Pre-growth processing of the MgO shows that intensive polishing using a specific H 2 O/SiO 2 suspension prior to growth is mandatory for obtaining long-range structural coherence in the films. The comparison between superlattices grown on re-polished and as-supplied substrates shows that the substrate treatment enhances the crystalline in-plane orientation and suppresses abc / acb twin formation. Magnetization measurements were performed using the magneto-optical Kerr effect. Smaller Kerr rotation and lower coercive fields were observed in the highly ordered samples.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-06-01 | Journal of Magnetism and Magnetic Materials |