Materials Research Letters (May 2023)

Thermal stability studies of alternating current poled Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals grown by solid-state crystal growth

  • Hwang-Pill Kim,
  • Haotian Wan,
  • Ho-Yong Lee,
  • Yohachi Yamashita,
  • Wook Jo,
  • Xiaoning Jiang

DOI
https://doi.org/10.1080/21663831.2022.2161841
Journal volume & issue
Vol. 11, no. 5
pp. 383 – 390

Abstract

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Thermal stabilities of relaxor-PbTiO3 single crystals are of great importance due to their limited operational temperatures in devices. Herein, to elucidate how poling conditions influence thermal stabilities, we investigated direct current (DC) and alternating current (AC) poled Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 (PMN-29PT) crystals grown by solid-state crystal growth, which guarantees more compositional uniformity. Our experiments show that the dielectric permittivity of the DC and AC poled crystals are 3560 and 4970, respectively, after annealing at 99.6°C, implying AC-poling prevails in enhancing thermal stabilities of relaxor-PbTiO3 single crystals. The mechanism behind the dissimilar thermal stabilities can be attributed to different domain configurations.

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