Abstract
Thermal vibrations of ions in R 2CuO4 crystals (R=La, Pr, Nd, Sm, Eu, Gd) were studied by x-ray diffractometry. A comparative analysis of thermal displacements of the copper and rare-earth ions permitted a conclusion as to the main interactions responsible for the structural state of the CuO2 sheets and of a crystal as a whole. The structural properties were found to correlate with the magnitude of the ionic radius and with the ground state of the rare-earth ions.
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Translated from Fizika Tverdogo Tela, Vol. 44, No. 11, 2002, pp. 2035–2048.
Original Russian Text Copyright © 2002 by Golovenchits, Sanina, Levin, Shepelev, Smolin.
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Golovenchits, E.I., Sanina, V.A., Levin, A.A. et al. Thermal vibrations and the structure of quasi-two-dimensional R 2CuO4 crystals (R=La, Pr, Nd, Sm, Eu, and Gd). Phys. Solid State 44, 2130–2144 (2002). https://doi.org/10.1134/1.1521470
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DOI: https://doi.org/10.1134/1.1521470