Local magnetic effects of interface alloying in Fe/Co superlattices

Autor:	S. Kamali-M, Victor Stanciu, Lennart Häggström, Gabriella Andersson, Anders Bergman
Rok vydání:	2006
Předmět:	Mössbauer effect Magnetic moment Condensed matter physics Transition metal Chemistry Conversion electron mössbauer spectroscopy Superlattice Monolayer General Materials Science Electronic structure Condensed Matter Physics Hyperfine structure
Zdroj:	Journal of Physics: Condensed Matter. 18:5807-5824
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/18/26/002
Popis:	Effects of interface alloying and the thickness dependence of magnetic properties of Fe/Co(001) multilayers have been investigated. The thicknesses of the Fe layers have been varied between two and 14 monolayers while the Co layers have been held constant at 7 ML. From conversion electron Mössbauer spectroscopy (CEMS) measurements and electronic structure calculations it is found that the magnitude of the Fe magnetic hyperfine field is larger close to the interface and smaller in the middle of thick (≥9 ML) Fe layers. For a thinner Fe layer (≤5 ML) the largest field is found in the centre of the Fe layer. By modelling the effects of interface alloying from earlier data for bulk Fe-Co alloys, and comparing with the experimental results, the degree of interface alloying is estimated to be 2-3 ML at each interface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::474d26dbf1ce5b20b753d4b0329f97d8 https://doi.org/10.1088/0953-8984/18/26/002 Zobrazit plný text záznamu