▎ 摘　　要

The scale of magnetic correlations in materials based on reduced graphene oxide (RGO) has been estimated for the first time using the method of small-angle scattering of polarized neutrons. This information cannot be obtained by other methods. Experiments have demonstrated the presence of small-angle magnetic-nuclear interference scattering for both original RGO and an RGO-based composite in magnetized fields H about 1 T, which unequivocally indicates the presence of magnetized areas on the scale of 1000 angstrom in the studied materials.