A new neutron study of the short range order inversion in Fe$_{1-x}$Cr$_x$

Details A new neutron study of the short range order inversion in Fe$_{1-x}$Cr$_x$ A new neutron study of the short range order inversion in Fe$_{1-x}$Cr$_x$

2010-08-18

arxiv.org/abs/1008.3064v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages; 6 figures

Scientific paper

We have performed new neutron diffuse scattering measurements in Fe$_{1-x}$Cr$_x$ solid solutions, in a concentration range 0$<$x$<$0.15, where the atomic distribution shows an inversion of the short range order. By optimizing the signal-background ratio, we obtain an accurate determination of the concentration of inversion x$_0$ =0.110(5). We determine the near neighbor atomic short range order parameters and pair potentials, which change sign at x$_0$. The experimental results are compared with previous first principle calculations and atomistic simulations.

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