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Specific features of the structural states in Pb2CdWO6 in the temperature range 15 ≤ T ≤ 770°C

  • Lattice Dynamics and Phase Transitions
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Abstract

In the temperature range 15–770°C, a correlation between the dielectric and structural specific features of lead cadmium tungstate is established. When studying the structure of Pb2CdWO6 in the temperature range 15 ≤ T ≤ 770°C, the unit-cell parameters and atomic parameters of the orthorhombic phase with space group Pmc21 (15 ≤ T ≤ 380°C) and cubic phase with space group Fm3m (380 ≤ T ≤ 770°C) are determined. It is revealed that the antiferroelectric state observed in of Pb2CdWO6 in the orthorhombic phase is associated with antiparallel displacements of Pb atoms. In the cubic phase, the Cd atoms are found to have disordered static displacements along [100]-type directions.

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Authors and Affiliations

  1. Rostov State University, ul. Zorge 5, Rostov-on-Don, 344090, Russia

    N. V. Prutsakova, M. F. Kupriyanov & Yu. V. Kabirov

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  1. N. V. Prutsakova
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  2. M. F. Kupriyanov
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  3. Yu. V. Kabirov
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Prutsakova, N.V., Kupriyanov, M.F. & Kabirov, Y.V. Specific features of the structural states in Pb2CdWO6 in the temperature range 15 ≤ T ≤ 770°C. Phys. Solid State 48, 113–116 (2006). https://doi.org/10.1134/S1063783406010227

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  • DOI: https://doi.org/10.1134/S1063783406010227

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