Hyperfine interaction parameters near clean and Ag-covered Fe(110) surfaces could be measured for the first time, for the first and the second monolayer separately, by means of in situ conversion-electron Mössbauer spectroscopy of oligatomic Fe(110) films on W(110) with monolayer ${}_{}{}^{57}{}_{}{}^{}\mathrm{Fe}$ probes. Quadrupole splitting deviates strongly from zero in the topmost monolayer only, indicating the reduced symmetry; it can be used to measure first- to second-layer self-diffusion. Magnetic hyperfine fields provide information on magnetic order near the surface with monolayer resolution.

We studied the effect of densification on the vibrational dynamics of a ${\mathrm{Na}}_2{\mathrm{FeSi}}_3{\mathrm{O}}_8$ glass. The density of vibrational states (DOS) has been measured using nuclear inelastic scattering. The corresponding changes in the microscopic, intermediate-range, and macroscopic properties have also been investigated. The results reveal that, in the absence of local structure transformations, the Debye level and the glass-specific excess of vibrational states above it have the same dependence on density, and the evolution of the DOS is fully described by the transformation of the elastic medium.

High-quality and impurity-free magnetite surfaces with $(\surd 2\times \surd 2)R45°$ reconstruction have been obtained for the ${\mathrm{Fe}}_3{\mathrm{O}}_4\left(001\right)$ epitaxial films deposited on $\mathrm{Fe}\left(001\right)$. Based on atomically resolved scanning tunneling microscopy images for both negative and positive sample polarity and density-functional-theory calculations, a model of the magnetite (001) surface terminated with Fe ions forming dimers on the reconstructed $(\surd 2\times \surd 2)R45°$ octahedral iron layer is proposed.