Abstract
We have used polarized neutron reflectivity to study the magnetic microstructure of two Fe/Cr(100) superlattices grown by molecular beam epitaxy. The first film, of nominal composition [0.9 nm Cr/5.5 nm Fe]5, and atomically sharp interfaces, exhibits classical collinear antiferromagnetic structure. The other film ([1.2 nm Cr/5.5 nm Fe]5), grown at a higher temperature, shows the field-dependent non-collinear features attributed to biquadratic coupling. We will describe these measurements and our preliminary structural analysis.
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Acknoledgments
We would like to thank M. Schäfer for helpful discussions and R. Schreiber for technical help with the sample preparation. The work in Bochum was supported by the Deutsche Forschungsgemeinschaft through SFB 166 and the Bundesministerium für Forschung und Technologie through grant 03-ZA3BOC. Furthermore, we would like to acknowledge travel support from the North Atlantic Treaty Organization through grant CRG 901064.
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Ankner, J., Schleyer, A., Zeidler, T. et al. Polarized Neutron Reflectivity Measurements of Collinear and Non-Collinear Magnetic Structures in Fe/Cr(100) Superlattices. MRS Online Proceedings Library 313, 761–766 (1993). https://doi.org/10.1557/PROC-313-761
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DOI: https://doi.org/10.1557/PROC-313-761