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 Mössbauer 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 Kübler, which indicate an high-spin metastable state for such an expanded hcp Fe phase. |