Abstract
A compositionally modulated Ni0.4Cu0.6 alloy, made in a thin film of 1.8 μm thickness, was examined by polarized neutron diffraction. The results show that the material is ferromagnetic, with a large enhancement of the magnetic moment (0.3μB/Ni) with respect to a disordered alloy. The behaviour of the magnetic moments gives strong evidence of chemical clustering.
| Original language | English (US) |
|---|---|
| Pages (from-to) | L198-L202 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1980 |
Funding
The new techniques of controlled vapor deposition have made possible the preparation of materials with distinct and novel physical characteristics \[1\ ].These are the compositionally modulated alloys (CMA), where the two components are deposited alternately on a convenient substrate, forming a periodically stratified layer structure. By a proper choice of the substrate and of the conditions of deposition, each component can be made to grow along some particular crystallographic orientation; hence the material is -at least along the direction of deposition - a single crystal, whose basic properties can be examined by diffraction techniques. We have studied with polarized neutrons a CMA ** Research sponsored jointly by the National Science Foun-dation under Grant DMR-78-24339 and the NSF-DMR program grant DMR-76-80847 and by the Division of Ma-terials Sciences, US Department of Energy in part under contract W-7405-eng-26 with the Union Carbide Corpora-tion. * On leave from the Institute of Physics, Peking, People's Republic of China.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics