Exchange biased FeNi/FeMn bilayers with coercivity and switching field enhanced by FeMn surface oxidation
Source abstract
Abstract
FeNi/FeMn bilayers were grown in a magnetic field and subjected to heat treatments at temperatures of 50 to 350 °C in vacuum or in a gas mixture containing oxygen. In the as-deposited state, the hysteresis loop of 30 nm FeNi layer was shifted. Low temperature annealing leads to a decrease of the exchange bias field. Heat treatments at higher temperatures in gas mixture result in partial oxidation of 20 nm thick FeMn layer leading to a nonlinear dependence of coercivity and a switching field of FeNi layer on annealing temperature. The maximum of coercivity and switching field were observed after annealing at 300 °C.
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Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic Properties and Applications · Metallic Glasses and Amorphous Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Universidad del País Vasco (UPV/EHU) 1 Departamento de Electricidad y Electrónica, , 48080 Bilbao, Spain
Ural Federal University 2 Department of Magnetism and Magnetic Nanomaterials, , 620002 Ekaterinburg, Russia
Universidad del País Vasco 3 SGIker, Servicios Generales de Investigación, , 48080 Bilbao, Spain
Universidad del País Vasco (UPV/EHU) 4 BCMaterials, , 48080 Bilbao, Spain
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