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Temperature dependence of the hyperfine quadrupolar interaction in K2ZrF6

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Abstract

The thermal dependence of the hyperfine quadrupolar interaction of181Ta at Zr sites in K2ZrF6 has been studied by TDPAC between RT and 511 °C. Four phases of ever increasing symmetry have been found in the range RT-437 °C. The possible existence of a healing mechanism with an activation energy of 0.187±0.040 eV is discussed for the lattice recovery in the range 270 °C–335 °C. The results at temperatures above 437 °C can be understood assuming a thermal decomposition of the compound.

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Authors and Affiliations

  1. Departamento de Física, Universidad Nacional de La Plata, C.C. 67, 1900, La Plata, Argentina

    J. A. Martínez (Member), A. M. Rodríguez (Fellow), M. C. Caracoche (Member), R. C. Mercader (Member), A. R. López Garcia (Member) & P. C. Rivas

  2. Carrera del Investigador Científico de la Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina

    J. A. Martínez (Member) & M. C. Caracoche (Member)

  3. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina

    A. M. Rodríguez (Fellow)

  4. Carrera del Investigador Científico, CONICENT, Argentina

    R. C. Mercader (Member) & A. R. López Garcia (Member)

Authors
  1. J. A. Martínez
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  2. A. M. Rodríguez
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  3. M. C. Caracoche
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  4. R. C. Mercader
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  5. A. R. López Garcia
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  6. P. C. Rivas
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Martínez, J.A., Rodríguez, A.M., Caracoche, M.C. et al. Temperature dependence of the hyperfine quadrupolar interaction in K2ZrF6 . Hyperfine Interact 13, 307–313 (1983). https://doi.org/10.1007/BF01027260

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  • DOI: https://doi.org/10.1007/BF01027260

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