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Features of the pressure-induced phase transitions in Eu2(MoO4)3 single crystals

  • Condensed Matter
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Abstract

The structural changes induced by a 9-GPa pressure in Eu2(MoO4)3 single crystals at room temperature have been studied using x-ray diffraction. It is established that a structural phase transition from the initial tetragonal phase to the new high-pressure tetragonal phase occurs rather than solid-phase amorphization that was observed previously in polycrystalline samples. The samples in the observed transition remain single-crystalline despite a significant difference (ΔV ∼ 18%) between the specific volumes of the initial and final phases. It is shown that the transition from the initial state to the high-pressure phase occurs via the formation of broad transition zones featuring a continuous and smooth change of the crystal lattice parameters.

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Authors and Affiliations

  1. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia

    I. M. Shmyt’ko, E. A. Kudrenko, V. V. Sinitsyn, B. S. Red’kin & E. G. Ponyatovsky

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  1. I. M. Shmyt’ko
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  2. E. A. Kudrenko
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  3. V. V. Sinitsyn
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  4. B. S. Red’kin
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  5. E. G. Ponyatovsky
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 82, No. 7, 2005, pp. 460–463.

Original Russian Text Copyright © 2005 by Shmyt’ko, Kudrenko, Sinitsyn, Red’kin, Ponyatovsky.

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Shmyt’ko, I.M., Kudrenko, E.A., Sinitsyn, V.V. et al. Features of the pressure-induced phase transitions in Eu2(MoO4)3 single crystals. Jetp Lett. 82, 409–412 (2005). https://doi.org/10.1134/1.2142866

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  • DOI: https://doi.org/10.1134/1.2142866

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