Anomalous enhancement in interfacial perpendicular magnetic anisotropy through uphill diffusion
Scientific Reports, ISSN: 2045-2322, Vol: 4, Issue: 1, Page: 5328
2014
- 17Citations
- 21Captures
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Metrics Details
- Citations17
- Citation Indexes17
- 17
- CrossRef14
- Captures21
- Readers21
- 21
Article Description
We observed interfacial chemical sharpening due to uphill diffusion in post annealed ultrathin multilayer stack of Co and Pt, which leads to enhanced interfacial perpendicular magnetic anisotropy (PMA). This is surprising as these elements are considered as perfectly miscible. This chemical sharpening was confirmed through quantitative energy dispersive X-ray (EDX) spectroscopy and intensity distribution of images taken on high angle annular dark field (HAADF) detector in Scanning Transmission Electron Microscopic (STEM) mode. This observation demonstrates an evidence of miscibility gap in ultrathin coherent Co/Pt multilayer stacks.
Bibliographic Details
Springer Science and Business Media LLC
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