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Sn monatomioc layersJiko, Norihiro*; Almokhtar, M.*; Takeda, Masayasu; Suzuki, Junichi; Shinjo, Teruya*; Mibu, Ko*
Journal of Magnetism and Magnetic Materials, 272-276(Part2), p.1233 - 1234, 2004/05
The growth-orientation dependence of magnetism of Cr/Sn and Fe/Cr/Sn/Cr multilayers was studied. For Fe/Cr/Sn/Cr multilayers, reduction of Cr magnetic moments was found in both (011)- and (001)-orientated samples, and the effect is larger in the former than the latter. In Cr/Sn multilayers, the (011)-oriented sample with the Cr layer thickness (
) of 80
80AA have a spin-density-wave structure with the wave vector perpendicular to the film plane.
Mibu, Ko*; Jiko, Norihiro*; Otsuka, Yuhei*; Takeda, Masayasu
no journal, ,
Magnetic structures of epitaxial Cr(001)/X multilayers, where monatomic layers of X (X = Sn, Au, Ag, V, or Fe) are periodically embedded in Cr, have been studied by neutron diffraction measurements using a triple-axis spectrometer. The temperature dependence of neutron diffraction patterns around the Cr(100) and Cr(010) reciprocal points, where magnetic peaks due to antiferromagnetic structures appear, was compared for Cr(001)/X multilayers with the same layer thickness, e.g., for [Cr(16.0 nm)/X(0.2 nm)] multilayers. It was clearly shown that the spin structure of Cr is quite different dependent on the monatomic counter metal, even when the Cr layer thickness is the same. The results are interpreted as a consequence of a competition between the interface effect, which enhances or quenches the magnetic moment of Cr at the interface regions, and the nesting effect, which stabilizes the incommensurate SDW structure with the modulation along the [001] axis.