ac susceptibility as a function of temperature for . Inset shows region below in more detail. Two magnetic transitions at 13 and are apparent.
Magnetization vs field for at .
Mössbauer spectra of . Solid lines are fits described in the text.
Temperature dependence of the hyperfine fields at the three sites in showing the two magnetic transitions at and . 엯 and ● show the fields for the and sites , while ▿ shows at the site . See text for details.
Temperature dependence of the areas of the three components in the Mössbauer spectra of showing a transition at . 엯 and ● show the and sites, while ▿ shows the site.
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