Variation of the Internal Fields and Isomer Shifts at the Fe Sites in the FeAl Series
- 1 March 1964
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 35 (3) , 1095-1096
- https://doi.org/10.1063/1.1713394
Abstract
The Mössbauer technique was used to measure the internal magnetic fields and isomer shifts of Fe57 atoms residing at the various sites in the FeAl series. Alloys of Al content varying from 0 to 50 at. % were studied. In the disordered region (HFe for each nn Al atom. In the ordered region sites having 8 through 2 nn Fe atoms were observed. For A type sites (4 nn Fe atoms and 4 nn Al atoms at 25 at. % Al) the internal field decreased by 0.11–0.12 HFe for each nn Al atom. In the region above about 30 at. % Al the alloys are not ferromagnetic but information on the type ordering could be obtained from the isomer shifts. Over the whole series the isomer shift indicated that there is progressively less electronic charge at the nucleus as the number of nn Al atoms increased.This publication has 1 reference indexed in Scilit: