Journal
APPLIED PHYSICS LETTERS
Volume 106, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4918372
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Funding
- National Key Basic Research Program of China [2015CB921401]
- Natural Science Foundation of China [51331002, 51371027, 51431009, 51471183, 11274371]
- Instrument Development Program of Chinese Academy of Sciences [YZ201345]
- China-Israel joint project [2013DFG13020]
- National Instrumentation Program of China [2012YQ120048]
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Anomalous Hall effect at room temperature in perpendicular Hall balance with a core structure of [Pt/Co](4)/NiO/[Co/Pt](4) has been tuned by functional CoO layers, where [Pt/Co](4) multilayers exhibit perpendicular magnetic anisotropy. A giant Hall resistance ratio up to 69 900% and saturation Hall resistance (R-S(P)) up to 2590 m Omega were obtained in CoO/[Pt/Co](4)/NiO/[Co/Pt](4)/CoO system, which is 302% and 146% larger than that in the structure without CoO layers, respectively. Transmission electron microscopy shows highly textured [Co/Pt](4) multilayers and oxide layers with local epitaxial relations, indicating that the crystallographic structure has significant influence on spin dependent transport properties. (c) 2015 AIP Publishing LLC.
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