학술논문

Influence of Ag on the microstructure and magnetic properties of perpendicular exchange coupled composite L10-[FePt-Ag]/[Co/Ni]N films.
Document Type
Article
Source
Applied Physics Letters. 6/24/2013, Vol. 102 Issue 25, p252410. 4p. 1 Black and White Photograph, 5 Graphs.
Subject
*SILVER
*MICROSTRUCTURE
*MAGNETIC properties
*COERCIVE fields (Electronics)
*THERMAL stability
Language
ISSN
0003-6951
Abstract
Two series of exchange coupled composite films with and without Ag interlayer, L10-[FePt-Ag]/[Co/Ni]N (FC-Ag-N) and FePt/[Co/Ni]N (FC-N), were prepared and well studied. Coercivities of both series decrease with the increase of the soft [Co/Ni]N thickness. However, well-isolated sphere grains are observed in FC-Ag-N samples, instead of a ledge-type structure in FC-N samples. The average grain size is almost constant for FC-Ag-N films, regardless of the thickness of Co/Ni multilayer. It indicates that Ag effectively suppresses the grain coarseness during the deposition of [Co/Ni]N. [ABSTRACT FROM AUTHOR]