Determination of the partial structure factors in (FexMn1-x)35Y65metallic glasses by neutron diffraction

The Faber-Ziman and Bhatia-Thornton structure factors of (Fe x Mn 1-x ) 35 Y 65 metallic glasses have been determined by neutron diffraction using the isomorphous substitution method between Fe and Mn atoms. These glasses behave as segregating glasses with a CSRO parameter alpha 1 of 0.07. The type of atomic arrangement is completely opposite to that found previously for the Ni 33 Y 67 glass. Using an electronic approach the authors show that strong changes in the electronic structure of both alloys can explain the difference.