This study was to investigate the surfactant effect of Bi on the heteroepitaxial growth of Fe/Cr(100) multilayers by reflection high-energy electron diffraction (RHEED) measurements. With predeposition of submonolayer Bi on Fe(100) prior to evaporation of Fe/Cr multilayer, more long-lasting RHEED intensity oscillations were observed. This implies that the layer-by-layer growth of Fe/Cr multilayer is enhanced. The observations of grazing incidence X-ray reflectivity confirmed that the interface structures of Fe/Cr multilayer with Bi were sharper than that of multilayer without Bi. The study was also to investigate the magnetotransport properties between Bi surfactant-mediated multilayers and normal ones. The magnetoresistance (MR) ratio of the multilayers was enhanced by predeposition of Bi. © 2005 Elsevier Ltd. All rights reserved.
Kamiko, M., Mizuno, H., Chihaya, H., Xu, J., Kojima, I., & Yamamoto, R. (2005). Effect of Bi surfactant on the heteroepitaxial growth in Fe/Cr(100) multilayers. Solid State Communications, 134(12), 803–808. https://doi.org/10.1016/j.ssc.2005.03.032