Memory effect in [001] poled 0.92Pb (Zn13 Nb23) O3 -0.08 PbTiO3 single crystals

Mingrong Shen, Wenwu Cao

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Abstract

We have conducted dielectric and pyroelectric measurements in [001] poled rhombohedral phase 0.92Pb (Zn13 Nb23) O3 -0.08 PbTiO3 single crystals from room temperature to 250 °C. An interesting poling history dependence has been revealed from the experimental results. Compared with room-temperature poled samples, crystals poled via the field-cooling method have a much lower rhombohedral-to-tetragonal phase transition temperature and have enhanced spontaneous polarization while heating up to the tetragonal phase. Such phenomena may be explained by the memory effect of dipolar defect alignment in the sample poled by the field-cooling method.

Original languageEnglish (US)
Article number192909
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number19
DOIs
StatePublished - May 9 2005

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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