Determination of the diamagnetic susceptibility and the electron static polarizability of crystals from X-ray diffraction data

The relationships associating the structure amplitudes, measured in a diffraction experiment, with the diamagnetic susceptibility and the static electron polarizability of ions for crystals with the NaCl-type structure are obtained. The calculations, carried out for a number of alkali halides and alkaline-earth oxides, have shown a good coincidence with the results of magnetic and optical measurements. The accuracy of the obtained results is analyzed; it is shown that when using accurate diffraction data the diamagnetic susceptibility and the electron polarizability may be determined with an accuracy of about 1%.