| Autor: | J. Bland, J.A. Hutchings, O. Nikolov, G.S. Case, M.F. Thomas |
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| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Hyperfine Interactions. 126:377-386 |
| DOI: | 10.1023/a:1012643317315 |
| Popis: | Magnetic anisotropy between in-plane and out of plane magnetic alignments is studied in a variety of multilayer systems using Mossbauer spectrosopy to observe the (Fe) magnetic orientation. The surface anisotropy in Fe/Au (1 1 1) multilayers is measured as K s = 0.9 × 10−3 Jm−2. In Fe/Ni multilayers the dependence of magnetic orientation on external field applied normal to the layers enables volume and interface anisotropies K v = (−5 ± 1) × 104 Jm−3 and K s = (−0.6 ± 0.4)× 10−3 Jm−2 to be evaluated. In similar applied field experiments coherent rotation of the magnetic Fe and NiFe layers in Fe/Cu/NiFe/Cu multilayers was observed for intervening Cu layer thickness x = 5 A but independent rotation for x = 50 A. Out of plane magnetic components are observed for DyFe2, YFe2 thin films and DyFe2/YFe2 multilayers. In fields of up to 0.25 T applied inplane only the moments of the YFe2 film showed significant rotation. |
| Databáze: | OpenAIRE |
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