Annealing Effects on the Structure and Magnetic Properties of Ni /Ti Multilayers

Annealing Effects on the Structure and Magnetic Properties of Ni /Ti Multilayers

Interface of Ni/Ti multilayers deposited by dc triode sputtering under high purity conditions (base pressure 10 exp --7 torr plus getter-sputtering) and their thermal evolution are studied. This was achieved by combining high energy electron diffraction, secondary ion mass spectrometry and magnetome...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1992-09, Vol.121 (1-3), p.201-204
Hauptverfasser: Sella, C, Kaabouchi, M, El Monkade, S, Miloche, M, Maaza, M, Lassri, H
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container_title Journal of magnetism and magnetic materials
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creator Sella, C
Kaabouchi, M
El Monkade, S
Miloche, M
Maaza, M
Lassri, H
description Interface of Ni/Ti multilayers deposited by dc triode sputtering under high purity conditions (base pressure 10 exp --7 torr plus getter-sputtering) and their thermal evolution are studied. This was achieved by combining high energy electron diffraction, secondary ion mass spectrometry and magnetometry. The study shows the existence of a non-magnetic interfacial amorphous layer due to interdiffusion over very short distances during deposition. A marked asymmetry between the two sides of a given layer is observed, due to interfacial contamination of titanium by carbon and oxygen acting as a diffusion barrier. Annealing treatments yield an increase in amorphization and finally crystallization of the interfacial amorphous phase to a NiTi stable phase.
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title Annealing Effects on the Structure and Magnetic Properties of Ni /Ti Multilayers
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