Mössbauer Effect Study of bcc Fe-Mn Alloys

Abstract

Mössbauer effect study of bcc Fe-Mn alloys has been made for compositions up to about 13% Mn. The data can be interpreted on the assumption that the Fe and Mn moments are almost constant being 2.2 µ B and 0.9 µ B , respectively, which is consistent with various NMR data, and also with the CPA calculation by Hasegawa and Kanamori. The internal field at Fe atoms decreases linearly with the number of nearest neighbour Mn atoms, which is considered to be due to the polarization of conduction electrons.