The Mössbauer Study of FeGe

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The Mössbauer spectra of Fe⁵⁷ in FeGe were measured over the temperature range from 79°K to 413°K. The hyperfine field due to the antiferromagnetic ordering was observed. Its value at 79°K was 155 kOe. The Néel point as determined from the temperature dependence of the internal magnetic field was 400°K. The isomer shift at room temperature was +0.22 mm/s. relative to pure Fe and varied with temperature like that of Fe. The electric quadrupole splitting (Remark: Graphics omitted.) was +0.35 mm/sec at room temperature.