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. © 2013 © 2013 Author(s).
CITATION STYLE
Svalov, A. V., Savin, P. A., Lepalovskij, V. N., Larrañaga, A., Vas’Kovskiy, V. O., Arribas, A. G., & Kurlyandskaya, G. V. (2013). Exchange biased FeNi/FeMn bilayers with coercivity and switching field enhanced by FeMn surface oxidation. AIP Advances, 3(9). https://doi.org/10.1063/1.4821105
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