We have performed new neutron diffuse scattering measurements in Fe1−xCrx solid solutions, in a concentration range 0<x<0.15, where the atomic distribution shows an inversion of the short range order. By optimizing the signal-background ratio, we obtain an accurate determination of the concentration of inversion x0 =0.110(5). We determine the near neighbor atomic short range order parameters and pair potentials, which change sign at x0. The experimental results are compared with previous first principle calculations and atomistic simulations.
@article{arxiv.1008.3064,
title = {A new neutron study of the short range order inversion in Fe$_{1-x}$Cr$_x$},
author = {I. Mirebeau and G. Parette},
journal= {arXiv preprint arXiv:1008.3064},
year = {2015}
}