The magnetic structure factor of the equiatomic FeCo alloy has been measured in the disordered phase at 1000K by polarized neutron diffraction. A comparison with the data collected in the ordered phase at room temperature [E. Di Fabrizio et al., Phys. Rev. B40, 9502 (1989) shows marked variations that can be ascribed to the thermal motion of nuclei. From the complete set of data vs temperature, the experimental ion-electron linear response function has been deduced and compared to a theoretical Random Phase Approximation model.
Temperature dependence of spin density in FeCo alloy: Magnetic response function
PETRILLO, Caterina;SACCHETTI, Francesco
1994
Abstract
The magnetic structure factor of the equiatomic FeCo alloy has been measured in the disordered phase at 1000K by polarized neutron diffraction. A comparison with the data collected in the ordered phase at room temperature [E. Di Fabrizio et al., Phys. Rev. B40, 9502 (1989) shows marked variations that can be ascribed to the thermal motion of nuclei. From the complete set of data vs temperature, the experimental ion-electron linear response function has been deduced and compared to a theoretical Random Phase Approximation model.File in questo prodotto:
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