The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Brillouin light scattering studies of the low-frequency region of vibrational spectra of a partially disordered ferroelectric crystal Na1/2Bi1/2TiO3 (NBT) from 300 to 850 K are presented. It is shown that the light scattering spectra contain a multicomponent quasi-elastic scattering (QELS) component observed in a broad frequency range, from 800 to 0.7 GHz. Reconstruction of the inelastic light scattering...
We report on the studies of lattice dynamics and crystal structure of natural perovskite with the general formula CaTiO3:0.01Fe by dielectric spectroscopy and X-ray diffraction in a wide temperature range. In contrast to the “chemically pure” synthetic perovskite, the lattice dynamics of the Fe-containing natural sample exhibits a structural instability in the vicinity of 240 K. Our studies of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.