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Effect of composition disorder on the electron paramagnetic resonance spectrum of the thermally populated excited state of Er3+ ions in YLuAG mixed garnets

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Abstract

The results of investigation of electron paramagnetic resonance of Er3+ ions in the thermally populated first excited state in (Y1 − x Lu x )3Al5O12 (YLuAG) mixed yttrium-lutetium garnet single crystals (0 ≤ x ≤ 1) are considered. In composition-disordered YLuAG, a number of new (as compared to Y3Al5O12 (YAG)) Er3+ paramagnetic centers are detected; these centers appear due to a change in the crystal field symmetry and magnitude upon isomorphic substitution of Lu3+ for Y3+ in the yttrium sublattice of garnets. The origin of new paramagnetic centers is established and their formation probability is calculated.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, ul. Politekhnicheskaya 26, St. Petersburg, Russia

    G. R. Asatryan & V. A. Khramtsov

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  1. G. R. Asatryan
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  2. V. A. Khramtsov
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Correspondence to G. R. Asatryan.

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Original Russian Text © G.R. Asatryan, V.A. Khramtsov, 2010, published in Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 80, No. 1, pp. 74–78.

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Asatryan, G.R., Khramtsov, V.A. Effect of composition disorder on the electron paramagnetic resonance spectrum of the thermally populated excited state of Er3+ ions in YLuAG mixed garnets. Tech. Phys. 55, 74–78 (2010). https://doi.org/10.1134/S1063784210010123

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