Atomic and magnetic spatial correlations in Fe‐13.5% V (abstract)

Recently, considerable theoretical effort has been directed toward a general understanding of the thermally induced concentration and magnetic moment fluctuations in alloys and the relationship of these fluctuations to alloy phase stability. The atom–atom, atom–moment, and moment–moment spatial correlations that are determined from neutron diffuse scattering measurements can be directly compared to those based on electronic structure calculations and thereby provide stringent tests for the theoretical approaches as well as theoretical assistance in the interpretation of experimental results. These comparisons are best made with single crystal data taken along high symmetry directions but surprisingly little of such data is available. In this paper we report the atom–atom and atom–moment correlations along the three highest symmetry directions for the ferromagnetic bcc alloy Fe‐13.5% V. These are compared with and are found to be in excellent agreement with predictions from ‘‘first‐principles’’ calculation...