COMPTON STUDY OF THE ELECTRONIC-STATE IN FE-NI ALLOYS

In this paper we report a study of the electronic state in Fe0.64Ni0.3 6 (Invar) and Fe0.5Ni0.5 alloys using the Compton scattering technique . Measurements were made on the polycrystalline alloys and also the pa rent metals using 59.54keV radiation from a 5 Ci Am-241 source. In the case of Invar, our data shows reasonable agreement with the rigid-ban d APW calculation of Wakoh. The data on both the alloys are in good ag reement with the superposition of Compton profiles of the pure constit uent metals, weighted by their compositions, suggesting that there is no charge transfer. A comparison with an earlier work on Fe0.51Ni0.49 has also been made.