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Iron(ii) and iron(iii) salts of strong acids form iron glycerolates on heating at 180 °C with glycerol in the presence of an equivalent amount of alkali. Individual iron(iii) glycerolate was obtained for the first time. When Fe3O4 magnetic nanoparticles were heated with glycerol, an iron(iii) glycerolate shell was formed on their surface. This journal is © The Royal Society of Chemistry. Ministry of Education and Science of the Russian Federation, Minobrnauka: 075-15-2020-777 The work was carried out with nancial support from the Ministry of Science and Higher Education of the Russian Federation (grant 075-15-2020-777) using the equipment of the Centre for Joint Use “Spectroscopy and Analysis of Organic Compounds” at the Postovsky Institute of Organic Synthesis of UB RAS. Mössbauer spectroscopy, XRD, and HRTEM studies were carried out within the state programs of Miheev Institute of Metal Physics of UB RAS («Function»), Institute of Solid State Chemistry of UB RAS, and Ural Federal University, correspondingly. Authors are grateful to Dr Maksim S. Karabanov (Ural Center for Shared Use “Modern Nanotechnology” at the Ural Federal University) for HRTEM study.

Nanostructured epitaxial [57Fe(1.2 A)/Cr(10.5 A)]30 multilayer with ultrathin Fe layers, demonstrated Kondo-like behavior, has been investigated by means of the nuclear resonance reflectivity at low temperatures (down to 4 K) in magnetic fields up to 4 T. We detected the beginning of the magnetic phase transition at 150 K which correlates with the minimum on the electrical resistivity curve. The determined magnetic hyperfine field distribution P(Bhf) indicates an inhomogeneity of the iron environments. When we apply the very high external magnetic field up to 4 T, it aligns Bhf(i) along the direction of the external field only partially. Also it has been noticed that Bhf(i) orientations depend on the magnetic pre-history.

The effect is studied of ion bombardment (Ar+, E = 20 keV, j = 100 μA/cm2, F = 5 × 1016 to 1018 cm−2) and thermal annealing on the atomic and magnetic structure of the FePd2Au alloy after 80% cold ...