mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-19601mrisel-84Research ArticleСтатьиEPR spectra and magnetization of XY-type rare-earth ions in pyrochlores Y2Ti2O7:RE3+ (RE = Yb, Er)BatulinR. G.

Kremlevskaya 18, Kazan 420008

CherosovM. A.

Kremlevskaya 18, Kazan 420008

GilmutdinovI. F.

Kremlevskaya 18, Kazan 420008

KiiamovA. G.

Kremlevskaya 18, Kazan 420008

KlekovkinaV. V.

Kremlevskaya 18, Kazan 420008

Vera.Klekovkina@kpfu.ruMalkinB. Z.

Kremlevskaya 18, Kazan 420008

RodionovA. A.

Kremlevskaya 18, Kazan 420008

YusupovR. V.

Kremlevskaya 18, Kazan 420008

Kazan Federal UniversityRussian Federation20191012201921619601 (11 pp.)Copyright © Batulin R.G., Cherosov M.A., Gilmutdinov I.F., Kiiamov A.G., Klekovkina V.V., Malkin B.Z., Rodionov A.A., Yusupov R.V., 20242024Batulin R.G., Cherosov M.A., Gilmutdinov I.F., Kiiamov A.G., Klekovkina V.V., Malkin B.Z., Rodionov A.A., Yusupov R.V.Batulin R.G., Cherosov M.A., Gilmutdinov I.F., Kiiamov A.G., Klekovkina V.V., Malkin B.Z., Rodionov A.A., Yusupov R.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/84

The results of studies of Y2Ti2O7 single crystals doped with Er3+ and Yb3+ ions by means of electron paramagnetic resonance (EPR) and dc-magnetometry are reported. EPR signals of the trigonal centers with the characteristic hyperfine structure of Er3+ or Yb3+ ions were observed. Field dependences of magnetization of single crystals for magnetic fields directed along the crystallographic axes and temperature dependences of magnetic susceptibilities were measured. 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 EPR spectra and magnetization curves were successfully reproduced by simulations in framework of the crystal-field approach, in particular, with an account for hybridization of ground 4f13 configuration of Yb3+ ions with the charge transfer states.

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The authors declare that there are no conflicts of interest present.