Abstract
The iron-doped perovskite La 0.67Sr 0.33Mn 0.99 57Fe 0.01O 3 compound has been studied by X-ray diffraction, Mössbauer spectroscopy, and vibrating sample magnetometry. The single phase of the polycrystalline La 0.67Sr 0.33Mn 0.99 57Fe 0.01O 3 powder has been prepared by a water-based sol–gel method. Crystalline La 0.67Sr 0.33Mn 0.99 57Fe 0.01O 3 was a rombohedral structure with lattice parameters a 0=5.480 Å, α=60.259°. Mössbauer spectra of La 0.67Sr 0.33Mn 0.99 57Fe 0.01O 3 have been taken at various temperatures ranging from 20 to 400 K. Analysis of 57Fe Mössbauer spectrum has considered anisotropic hyperfine field fluctuation. Temperature dependence of anisotropy energy is calculated from the relaxation rate.
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