mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-20201mrisel-33Research ArticleСтатьиSpin relaxation of the 171Yb3+ ion in the Y228SiO5 crystalLikerovR. F.

Sibirsky tract, 10/7, Kazan, 420029

rodionlikerov@gmail.comTarasovV. F.

Sibirsky tract, 10/7, Kazan, 420029

ShestakovA. V.

Sibirsky tract, 10/7, Kazan, 420029

EreminaR. M.

Sibirsky tract, 10/7, Kazan, 420029

ZavartsevYu. D.

Vavilova St., 38, Moscow, 119991

KutovoiS. A.

Vavilova St., 38, Moscow, 119991

Zavoisky Physical-Technical Institute, Federal Research Center "Kazan Scientific Center of RAS"Russian FederationProkhorov General Physics Institute, Russian Academy of SciencesRussian Federation20201601202422220201 (11 pp.)Copyright © Likerov R.F., Tarasov V.F., Shestakov A.V., Eremina R.M., Zavartsev Y.D., Kutovoi S.A., 20242024Likerov R.F., Tarasov V.F., Shestakov A.V., Eremina R.M., Zavartsev Y.D., Kutovoi S.A.Likerov R.F., Tarasov V.F., Shestakov A.V., Eremina R.M., Zavartsev Y.D., Kutovoi S.A.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/33

Pulse methods of electron paramagnetic resonance (EPR) are used to measure relaxation behavior and crystal environment of 171Yb impurity ions in a single crystal of yttrium orthosilicate (Y2SiO5) grown with an isotopically pure 28Si with a zero value of the nuclear spin. It is shown that for an ytterbium ion substituting an yttrium ion in a six-fold oxygen environment, the spin-lattice relaxation time is approximately an order of magnitude greater than that for the ytterbium ion substituting an yttrium ion in a seven-fold oxygen environment. Measurements of the phase relaxation times by two-pulse Hahn echo and Carr-Purcell-Meiboom-Gill (CPMG) multiple pulse sequence revealed strong influence of spectral diffusion on the time of phase relaxation at temperatures less than 9 K. Two magnetically different ytterbium paramagnetic centers were definitely attributed to two structurally different ytterbium positions in the Y2SiO5 crystal lattice relative by the electron spin echo envelope modulation (ESEEM) method. Based on the data obtained, the most probable location of the 171Yb3+ ion in the Y2SiO5 crystal lattice was determined.

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