Hyperfine Interactions

, Volume 14, Issue 3, pp 227–231

Temperature defendence of the hyperfine interaction in (NH4)2ZrF6

  • A. M. Rodríguez
  • J. A. Martínez
  • M. C. Caracoche
  • P. C. Rivas
  • A. R. López García
Article

DOI: 10.1007/BF02043473

Cite this article as:
Rodríguez, A.M., Martínez, J.A., Caracoche, M.C. et al. Hyperfine Interact (1983) 14: 227. doi:10.1007/BF02043473

Abstract

The thermal evolution of the hyperfine quadrupole interaction in (NH4)2ZrF6 has been investigated via TDPAC from 14 to 400 K. A phase transition is detected near 370 K. The low-temperature phase exhibits two sites equally populated for181Ta probes. The associated electric field gradients are described by both high asymmetry parameters and high interaction frequencies. On the other hand, the high-temperature phase corresponds to an unique axially symmetric and more intense electric field gradient.

Copyright information

© J.C. Baltzer Scientific Publishing Company 1983

Authors and Affiliations

  • A. M. Rodríguez
    • 1
  • J. A. Martínez
    • 1
  • M. C. Caracoche
    • 1
  • P. C. Rivas
    • 1
  • A. R. López García
    • 1
  1. 1.Departamento de Física, Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
  2. 2.CICPBABuenos AiresArgentina
  3. 3.CONICETArgentina

Personalised recommendations