Broad-band dielectric spectroscopy of tetragonal PLZTx/40/60
- 1 June 2006
- journal article
- research article
- Published by Taylor & Francis in Phase Transitions
- Vol. 79 (6-7), 415-426
- https://doi.org/10.1080/01411590600892179
Abstract
The dielectric behaviour of tetragonal PLZT x/40/60 ceramics doped with lanthanum (x = 5, 12 and 15%) has been investigated at 100–1014 Hz. Dielectric, THz and infrared spectra were measured from 500 to 20 K. For x ≥ 12 relaxor ferroelectric behaviour was observed. All three samples showed an additional relaxational mode below phonons. Analysis of the phonon modes for ferroelectric PLZT 5/40/60 is presented together with the complete dielectric behaviour.Keywords
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