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XRD patterns for nanocomposites annealed at for 0, 10, and , respectively. All the index lines, if not specified, are of the tetragonal structure. The 110 peak is buried among the peaks. No or other possible oxides are indicated. The patterns are offset for clarity.
The room temperature Mössbauer spectrum of particles annealed at for . The open circles are experimental data. Fe and subspectra and the fitted total spectrum are also indicated.
TEM micrographs of particles annealed at for . (a) A typical spherical particle and (b) an image of an ion-milled thinned section of a particle showing grains.
Hysteresis loops of nanocomposites (a) annealed at for 0, 10, and measured at room temperature and (b) annealed at for measured at room temperature and .
The reverse field dependence of the normalized isothermal remanent magnetization and the dc demagnetization remanence , and of nanocomposite annealed at for measured at room temperature. is the maximum value of the remanent magnetization.
Fe magnetic hyperfine fields (kOe) for -FeCo and (listed by site) at room temperature.
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