Correlation between Pd metal thickness and thermally stable perpendicular magnetic anisotropy features in [Co/Pd]{sub n} multilayers at annealing temperatures up to 500 °C

We examine highly stable perpendicular magnetic anisotropy (PMA) features of [Co/Pd]{sub 10} multilayers (MLs) versus Pd thickness at various ex-situ annealing temperatures. Thermally stable PMA characteristics were observed up to 500 °C, confirming the suitability of these systems for industrial ap...

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Bibliographic Details
Published in:AIP advances 2015-02, Vol.5 (2)
Main Authors: An, Gwang Guk, Lee, Ja Bin, Yang, Seung Mo, Yoon, Kap Soo, Kim, Jae Hong, Chung, Woo Seong, Hong, Jin Pyo, Division of Nano-Scale Semiconductor Engineering, Hanyang University, Seoul 133-791
Format: Article
Language:English
Subjects:
ANISOTROPY
ANNEALING
LAYERS
MATERIALS SCIENCE
METALS
THICKNESS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
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Summary:We examine highly stable perpendicular magnetic anisotropy (PMA) features of [Co/Pd]{sub 10} multilayers (MLs) versus Pd thickness at various ex-situ annealing temperatures. Thermally stable PMA characteristics were observed up to 500 °C, confirming the suitability of these systems for industrial applications at this temperature. Experimental observations suggest that the choice of equivalent Co and Pd layer thicknesses in a ML configuration ensures thermally stable PMA features, even at higher annealing temperatures. X-ray diffraction patterns and cross-sectional transmission electron microscopy images were obtained to determine thickness, post-annealing PMA behavior, and to explore the structural features that govern these findings.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4913997