EPR SPECTRA AND MAGNETIZATION OF XY-TYPE RARE-EARTH IONS IN PYROCHLORES Y2TI2O7:RE3+ (RE=YB, ER)

Авторы: Batulin R.G., Cherosov M.A., Gilmutdinov I.F., Kiiamov A.G., Klekovkina V.V., Malkin B.Z., Rodionov A.A., Yusupov R.V.
Журнал: Magnetic Resonance in Solids
Том: 21
Номер: 6
Год издания: 2019
Первая страница: 1
Последняя страница: 11
Номер статьи: 19601
DOI: 10.26907/mrsej-19601
Аннотация: The results of studies of Y2Ti2O7 single crystals doped with Er3+ and Yb3+ ions by meansof electron paramagnetic resonance (EPR) and dc-magnetometry are reported. EPR signalsof the trigonal centers with the characteristic hyperfine structure of Er3+ or Yb3+ ions wereobserved. Field dependences of magnetization of single crystals for magnetic fields directedalong the crystallographic axes and temperature dependences of magnetic susceptibilities weremeasured. Spin Hamiltonian parameters (g-factors and parameters of the hyperfine interaction)for Er3+ and Yb3+ ions were obtained from analysis of experimental data. The registered EPRspectra and magnetization curves were successfully reproduced by simulations in frameworkof the crystal-field approach, in particular, with an account for hybridization of ground 4f13configuration of Yb3+ ions with the charge transfer states.
Добавил в систему: Клековкина Вера Вадимовна

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