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Preparation of Heusler thin films: The quaternary alloy Co2Fe0.5Mn0.5Si

✍ Scribed by Ebke, D. ;Thomas, A. ;Hütten, A. ;Balke, B. ;Felser, C. ;Schmalhorst, J. ;Reiss, G.

Book ID
105364867
Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
383 KB
Volume
205
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

In this work the basic strategies for the preparation of Co~2~Mn~0.5~Fe~0.5~Si as an example for Heusler alloy thin films will be described. Texture and magnetic properties of these films will be discussed, especially with regard to different buffer layers and annealing temperatures. Finally, we will show the integration of Heusler thin films into magnetic tunnel junctions (MTJs) and calculate the effective spin polarization. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Electronic and magnetic properties of the bulk Co 2 Ti 1 À x Fe x Ga Heusler alloys and Co 2 Ti 0.5 Fe 0.5 Ga (0 0 1) surfaces are studied within the framework of density functional theory using the augmented plane wave plus local orbital (APWþ lo) approach. It will be shown that all alloys have the