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Updated: Mar 14, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Influence of Superparamagnetism on Exchange Anisotropy at CoO/[Co/Pd] Interfaces
Marcin Perzanowski1, Marta Marszalek1, Arkadiusz Zarzycki1
1Deparment of Materials Science, Institute of Nuclear Physics, Polish Academy of Sciences , Radzikowskiego 152, 31-342 Krakow, Poland.
Abstract:
Magnetic systems exhibiting an exchange bias effect are being considered as materials for applications in data storage devices, sensors, and biomedicine. Because the size of new magnetic devices is being continuously reduced, the influence of thermally induced instabilities in magnetic order has to be taken into account during their fabrication process. In this study, we show the influence of superparamagnetism on the magnetic properties of an exchange-biased [CoO/Co/Pd]10 multilayer. We find that the process of progressive thermal blocking of the superparamagnetic clusters causes an unusually fast rise of the exchange anisotropy field and coercivity and promotes easy-axis switching to the out-of-plane direction.
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