IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Hyperfine Interactions in SrxCa1-xHfO3
Autor/es:
R. E. ALONSO; A. LÓPEZ GARCÍA
Lugar:
Xi'an, China
Reunión:
Congreso; IMF-ISAF; 2009
Institución organizadora:
IMF-ISAF
Resumen:
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The temperature dependence of the hyperfine parameters in
the perovskite-type compound SrxCa1-xHfO3 powder samples have been investigated
for the first time by means of Perturbed Angular Correlation spectroscopy using
181Ta hyperfine probes. The probes were produced putting the pure
samples in a thermal neutron flux during a short time to obtain a ppm probe
concentration.The measurements have been performed as a function of temperature
in the range from 293 K to 1275 K. The hyperfine interactions have been
established, showing static quadrupolar interaction. The principal components
of the Electric Field Gradient tensor are presented and analized as a function
of temperature.
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