The Mössbauer Study of FeGe

Abstract

The Mössbauer spectra of Fe 57 in FeGe were measured over the temperature range from 79°K to 413°K. The hyperfine field due to the antiferro-magnetic 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 \(\frac{1}{2}e^{2}qQ\) was +0.35 mm/sec at room temperature.