Metallurgical Effects on Magnetic Properties of the Alloy 15.7 at. % Fe-Au
The Mössbauer effect was used to determine the influence of different metallurgical treatments on the magnetic properties of 15.7 at.% Fe-Au. The spectra of an as-quenched sample at 4.2 K can be explained as consisting of two magnetic hyperfine patterns with different average hyperfine fields due to the presence of mictomagnetic and ferromagnetic clusters. The mictomagnetic freezing temperature for this specimen was determined by the appearance of a central doublet spectrum for temperatures above 40 K. Aging of the sample at 22°C or plastic deformation result in changes of the transition temperatures, and plastic deformation drastically reduces the relative amount of the mictomagnetic phase in the sample.
KeywordsHyperfine Field Satellite Line Magnetic Phase Diagram Mossbauer Spectrum Infinite Cluster
Unable to display preview. Download preview PDF.
- 1.B.R. Coles, B.V.B. Sarkissian and R.H. Taylor, Phil.Mag. B37, 489 (1978).Google Scholar
- 6.S. Crane and H. Claus, Solid State Commun, will be published.Google Scholar
- 10.G. Chandra and J. Ray, J. Physique 39 ,C 6–914 (1978).Google Scholar
- 11.J. Lauer, T. Shigematsu and W. Keune (in preparation).Google Scholar