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Information × Registration Number 0211U006891, 0109U006363 , R & D reports Title Spin lattice interactions in multiferroics with geometrically frustrated magnetic bonds. popup.stage_title Head Pashkevich Yurii Georgievich, Доктор фізико-математичних наук Registration Date 16-05-2011 Organization Donetsk Institute of Physics @ Engineering named after O.O.Galkin NAS of Ukraine popup.description2 Light scattering spectra of CdCr2O4, ZnCr2O4 and CuCrO2 were measured. Temperature dependencies of polarized spectra were obtained. It was established that essential changes in phonon spectra of CdCr2O4 and ZnCr2O4 such as an appearance of new lines, splitting of degenerate lines and temperature dependent shift of frequencies at the temperatures under magnetic ordering. Spin-phonon interaction parameters in CdCr2O4 and ZnCr2O4 were estimated. It was established that phonon spectra are insensitive to magnetic ordering in crystal CuCrO2. Theoretical calculations of phonon frequencies were performed and theoretical energies of phonons were obtained. Product Description popup.authors Гнезділов В.П. Гусєв О.А. Ламонова К.В. Таренков В.Ю. Червінський Д.О. Шевцова Т.М. popup.nrat_date 2020-04-02 Close