| Autor: |
Lin, K.-W., Guo, J.-Y., Liu, H.-Y., Ouyang, H., Chan, Y.-L., Wei, D.-H., van Lierop, J. |
| Zdroj: |
Journal of Applied Physics; Apr2008, Vol. 103 Issue 7, p07C105, 3p |
| Abstrakt: |
The structural and magnetic properties of NiCo/(Ni,Co)O bilayers were investigated. X-ray diffractometry results have shown that the top NiCo layer consisted of a fcc NiCo phase. The bilayer bottom was either a pure (Ni,Co)O or a composite [NiCo+(Ni,Co)O] phase, depending on the percent of O2/Ar ratio used during deposition. A double-shifted hysteresis loop exhibiting components that were from positive or negative coupling was observed in the NiCo/(Ni,Co)O (8%O2/Ar) bilayers. The microstructural changes, which result from a combination of deposition oxygen content and the ion-beam bombardment, will result in the unusual exchange bias behavior. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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