Preparation of short-period Fe-N magnetic multilayers using an atomic nitrogen beam

Citation
Nd. Telling et al., Preparation of short-period Fe-N magnetic multilayers using an atomic nitrogen beam, IEEE MAGNET, 37(4), 2001, pp. 2308-2310
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
0018-9464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2308 - 2310
Database
ISI
SICI code
0018-9464(200107)37:4<2308:POSFMM>2.0.ZU;2-L
Abstract
Magnetic multilayers containing Fe-N layers with bilayer periods of between similar to 15-84 Angstrom and sharp interfaces, are successfully grown usi ng an atomic (free radical) nitrogen beam. The phase composition and micros tructure is found to be a function of the initial Fe layer thickness prior to nitrogenation. Generally, higher N content phases are found as the initi al Fe layer is reduced. Small grains (similar to 10 mn) are observed in mul tilayers containing alpha -Fe and gamma -Fe4N phases. In these films, a per pendicular anisotropy is found for a certain thickness of the Fe layers. A stripe domain structure associated with this anisotropy is observed. The or igin of this anisotropy may be induced stress caused by lattice mismatch be tween layers and/or lattice dilation due to IV incorporation.