ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Two series of polycrystalline Fe100−xMox and Fe100−xWx (0≤x≤10 at. %) alloys were made. In order to preserve a single bcc phase, alloy samples, depending on the x value, were quenched from various temperatures TQ. In general, TQ is higher than 850 °C, and increases with x. X-ray diffraction was used to check the phase and the lattice constant of each sample. Magnetoresistance, electrical resistivity, and magnetic moment were measured at 4 K. Those experimental data are analyzed for Fe-Cr, Fe-Mo, and Fe-W alloys, especially the effects of moving down along the VIB column from Cr to W on the transport and magnetic properties. Comparison is made with Co-based alloys, where the changes of the spin-up resistivity from Co-Ni to Co-Pd and from Co-Pd to Co-Pt are due to the increase in s-s scattering. For Fe-based alloys, however, because the spin-down d band is partially empty (the roles of spin-up and -down bands are reversed), the spin-down resistivity is from s-d scattering instead.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352610
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