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X-ray diffraction study of ion thermal vibrations in R2CuO4 (R=Pr and Gd) crystals

  • Lattice Dynamics. Phase Transitions
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Abstract

An X-ray diffraction study is reported of the symmetry in the spatial distribution of thermal vibrations of Cu2+, Gd3+, and Pr3+ ions in Gd2CuO4 crystals. An analysis of the pattern of the angular thermal-vibration amplitude distribution obtained experimentally at different temperatures allows a conclusion about the character of the local Jahn-Teller effect for the Cu2+ ions, structural phase transitions, and the orbital ground state of the Cu2+ ions.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, ul. Odoevskogo 24/2, St. Petersburg, 199155, Russia

    A. A. Levin, Yu. I. Smolin & Yu. F. Shepelev

  2. Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    E. I. Golovenchits & V. A. Sanina

Authors
  1. A. A. Levin
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  2. Yu. I. Smolin
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  3. Yu. F. Shepelev
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  4. E. I. Golovenchits
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  5. V. A. Sanina
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__________

Translated from Fizika Tverdogo Tela, Vol. 42, No. 1, 2000, pp. 147–153.

Original Russian Text Copyright © 2000 by Levin, Smolin, Shepelev, Golovenchits, Sanina.

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Levin, A.A., Smolin, Y.I., Shepelev, Y.F. et al. X-ray diffraction study of ion thermal vibrations in R2CuO4 (R=Pr and Gd) crystals. Phys. Solid State 42, 153–160 (2000). https://doi.org/10.1134/1.1131184

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  • DOI: https://doi.org/10.1134/1.1131184

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