Sep 12 – 17, 2010
CERN
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TDPAC study of the phase transitions in PbTi1-xHfxO3

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500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

CH - 1211 Geneva 23 Switzerland
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POSTER Semiconductors, Metals and Insulators

Speaker

Dr Roberto Alonso (IFLP-UNLP)

Description

Text

Summary

In this work we present a study of the phase transitions by means of the variations of the Electric Field Gradient (EFG) as a function of temperature at ambient pressure on powder samples of PbTi1-xHfxO3 for x= 0.25, 0.50 and 0.75. For the EFG determination Perturbed Angular Correlation Spectroscopy (TDPAC) was employed. 181Ta were used as probes atoms, which were obtained by neutron capture activation of 180Hf naturally present in the sample. The obtained experimental results are also compared with previous ones obtained by Impedance Spectroscopy (IS).

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Primary author

Dr Roberto Alonso (IFLP-UNLP)

Co-author

Dr Alberto Lopez Garcia (IFLP-UNLP)

Presentation materials

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