Short-range order in Fe-B metallic glass alloys

Measured hyperfine fields at iron sites in Fe-B glass alloys are compared to calculations based on two models. The first model is based on the concept of dense random packing of spheres; the second emphasizes the short-range order found in crystalline materials with similar compositions. The crystalline short-range order is found to give a better fit and suggests specific improvements in the concepts used to understand the atomic structure of glasses.