Relationship Between Thermal Stability and Layer-Stack/Structure of NiMn-Based GMR Systems

Relationship Between Thermal Stability and Layer-Stack/Structure of NiMn-Based GMR Systems

This paper deals with the dependence of NiMn-based spin valves' functionality on temperature and time and with the factors influencing their thermal stability. As will be shown, the NiMn-based systems can be used for more than 660 h at 250 °C without degradation, but also an application up to 4...

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Veröffentlicht in:IEEE transactions on magnetics 2015-01, Vol.51 (1), p.1-4
Hauptverfasser: Wienecke, Anja, Rissing, Lutz
Format: Artikel
Sprache:eng
Schlagworte:
Annealing
Degradation
Diffusion processes
Magnetism
Resistance
Spin valves
Stability analysis
Thermal stability
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Zusammenfassung:This paper deals with the dependence of NiMn-based spin valves' functionality on temperature and time and with the factors influencing their thermal stability. As will be shown, the NiMn-based systems can be used for more than 660 h at 250 °C without degradation, but also an application up to 400 °C for short time is possible. The investigations reveal the dependence of the system's thermal stability on the layer-stack and its structure. The exchange bias turns out to be an indicator for a spin valve's thermal stability.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2014.2355874