Articles dans des revues à comité de lecture
|Magnetism and structure in hexagonal Fe/Ru superlattices with short periodicity|
|Maurer M., Piecuch M., Ravet M.F., Ousset J.C., Sanchez J.P., Aaron C., Dekoster J., Raoux D., De Andres A., De Santis M., Fontaine A., Baudelet F., Rouviere J.L., Dieny B.|
|Journal of Magnetism and Magnetic Materials 93 (1991) 15|
We present recent results on the structure and on the magnetic properties of Fe/Ru superlattices. Detailed knowledge of the local structure is obtained from X-ray diffraction, including in the anomalous mode, and by EXAFS, thus bringing evidence that Fe layers correspond to an expansion exceeding 10%. The magnetic state is mostly characterized by MoÌˆssbauer spectroscopy and also by magnetization measurements, thus demonstrating that the internal Fe layer carry a moment of about 2Î?B, whereas the two interfacial layers bear no moment. Except for the extension of the non-magnetic interface, these results are in agreement with theoretical predictions of KuÌˆbler, which indicate an high-spin metastable state for such an expanded hcp Fe phase.