Abstract
We have engineered the magnetic properties of 1–8 nm Co films epitaxially grown on an Au-buffered bifacial single crystal. The surface of was atomically flat, whereas the followed the morphology of the vicinal W surface, showing a regular array of monoatomic steps. For Co grown on , the existence of the out-of-plane magnetization component extended strongly to a thickness of about 8 nm, which was accompanied by an anomalous increase of the out-of-plane switching field with increasing . In addition, the process of up-down magnetization switching could be realized with both a perpendicular and in-plane external magnetic field.
- Received 20 March 2008
DOI:https://doi.org/10.1103/PhysRevLett.101.217202
©2008 American Physical Society