Magnetic Correlations in Some FeNi/Cu(100) Multilayers

Autor:	Rula O. Assaad, S. S. A. Razee
Rok vydání:	2012
Předmět:	Condensed Matter::Materials Science Paramagnetism Materials science Condensed matter physics Phase (matter) Monolayer Curie Curie temperature Electronic structure Condensed Matter Physics Layer (electronics) Electronic Optical and Magnetic Materials Local moment
Zdroj:	Journal of Superconductivity and Novel Magnetism. 26:1983-1989
ISSN:	1557-1947 1557-1939
DOI:	10.1007/s10948-012-2062-7
Popis:	We present a first-principles electronic structure based study of magnetic correlations in the paramagnetic phase of some Fe and Ni multilayers on Cu(100) substrates. We have used the screened Korringa–Kohn–Rostoker method to calculate the electronic structure within the spin-density functional theory and used the disordered local moments model to describe the paramagnetic phase above the Curie temperature. We find that in the Ni/Cu(100) films, there are no local moments formation for any thickness. For the multilayers of Fe and Ni, we find that there is some, although very small, local moment formation in the interior of the Ni film if the Ni layer is more than 6 monolayers thick. However, the Ni layers facilitate the magnetic correlation between the Fe layers. The Curie temperatures of the multilayers also depend upon the Ni layer thickness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49982469b3f1ba085a0e90347fbf0949 https://doi.org/10.1007/s10948-012-2062-7 Zobrazit plný text záznamu Full text from SpringerLink