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Pt-Co multilayers: Interface effects at the monolayer limit

✍ Scribed by Angelakeris, M. ;Papaioannou, E. Th. ;Poulopoulos, P. ;Vlachos, A. ;Natsiopoulos, G. ;Wilhelm, F. ;Rogalev, A. ;Flevaris, N. K.

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
337 KB
Volume
205
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

This work focuses on the structural and magnetic features of Pt–Co multilayers prepared by e‐beam evaporation. In order to examine interface and induced magnetism effects, the layer thickness was always kept under 4 monolayers. X‐ray diffraction spectra revealed the multilayer nature of the samples while magnetometry measurements recorded tuneable perpendicular magnetic anisotropy and enhanced magnetization values due to the high degree of Pt‐polarization in a ferromagnetic environment. The experimental technique that allows one to study induced magnetism is the X‐ray magnetic circular dichroism, which provides quantitative information on spin and orbital magnetic moments. Enhanced Pt contribution on the perpendicular anisotropy was evidenced, while the induced (spin, orbital and total) magnetic moments, and the ratio orbital‐to‐spin magnetic moments were derived by application of the sum rules. (Β© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Interface Structure Effects on the Kerr
Interface Structure Effects on the Kerr Rotation in Co/Pt Multilayers
✍ He, L.H. ;Tang, Y.J. ;Chen, X. ;LiangHe, B.Q. ;Li, J. ;Wang, Y.J. ;Chen, YH. πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 96 KB

The interface structure and magneto-optical properties of Co/Pt multilayers were studied. An unusual increase of the Kerr rotation with increasing Pt thickness was found for a Pt thickness less than 0.72 nm. Through small-and large-angle X-ray diffraction analyses, we suggest that this enhancement o