Abstract
The phase transformations occurring in amorphous europium molybdate Eu2(MoO4)3 during annealing at atmospheric pressure are studied using optical spectroscopy and x-ray diffractometry. It is established that the metastable β phase is formed at a temperature of ∼550°C, whereas the transition to the stable equilibrium α phase takes place at higher temperatures T ≥ 700°C. The spectral characteristics of the α phase, which differ substantially from those of the amorphous state and the β phase, are measured for the first time.
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Original Russian Text © A.P. Kiseev, S.Z. Shmurak, B.S. Red’kin, V.V. Sinitsyn, I.M. Shmyt’ko, E.A. Kudrenko, E.G. Ponyatovskiĭ, 2006, published in Fizika Tverdogo Tela, 2006, Vol. 48, No. 8, pp. 1458–1466.
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Kiselev, A.P., Shmurak, S.Z., Red’kin, B.S. et al. Evolution of the spectral response of amorphous europium molybdate under annealing. Phys. Solid State 48, 1544–1552 (2006). https://doi.org/10.1134/S1063783406080208
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DOI: https://doi.org/10.1134/S1063783406080208