Pb as a surfactant in the growth of giant magnetoresistance Fe/Cr(1 0 0) multilayers

• Published in: Journal of magnetism and magnetic materials 2002-02, Vol.240 (1), p.508-510
• Main Authors: Kamiko, M., Kim, K.-Y., Oh, S.-M., Li, B., Xu, J., Kojima, I., Yamamoto, R.
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Crystal growth; Electron diffraction and scattering; Exact sciences and technology; Giant magnetoresistance; Inorganic compounds; Interface roughness; Low-energy electron diffraction (leed) and reflection high-energy electron diffraction (rheed); Magnetic properties and materials; Magnetoresistance – multilayers; Magnetotransport phenomena, materials for magnetotransport; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Surfactant
• ISSN: 0304-8853
• DOI: 10.1016/S0304-8853(01)00889-7

We investigated the differences in the interface structures and magnetotransport properties between surfactant-mediated multilayers and normal ones. We confirmed that the surfaces of Fe/Cr(1 0 0) multilayers with Pb are flatter and the interfaces are sharper than one without Pb, which means that Pb operates as an effective surfactant. The magnetoresistance ratio of the multilayers prepared with Pb was larger than that of the multilayers prepared without Pb. The change of resistance with magnetic field was larger for the multilayers with a surfactant.