Mossbauer spectroscopy has been used to analyze the magnetic and structural properties of amorphous rare earth-transition metals (RE-TM) thin films prepared under a variety of conditions. For those samples that were stable at elevated temperatures, magnetization as a function of temperatures up to the Curie point was determined.
R. M. Emrick,
W. A. Coutts,
"Mossbauer Spectroscopic Study Of Amorphous RE-TM Thin Films", Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); doi: 10.1117/12.944623; https://doi.org/10.1117/12.944623