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Temperature dependence of spin density in FeCo alloy: Magnetic response function

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
89
Issue
5
Identifiers
DOI: 10.1016/0038-1098(94)90215-1

Abstract

Abstract The magnetic structure factor of the equiatomic FeCo alloy has been measured in the disordered phase at 1000 K 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.

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