Abstract
The results of a Mössbauer-effect study of HoFe in the temperature range 99-875°K are presented. Special attention is paid to the shift of the center of the spectrum and its temperature dependence both above and below the Néel point . Although no discontinuity is found at the Néel temperature, the total shift has a different temperature dependence for and for . The experimental results are compared with theoretical predictions based on a magnetization-dependent Debye model. Also, a theoretical model based on the supertransferred process is presented which gives rise to a magnetization-dependent isomer shift, although the calculated effect is almost two orders of magnitude too small.
- Received 6 March 1969
DOI:https://doi.org/10.1103/PhysRev.184.334
©1969 American Physical Society