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Demonstration of Reentrant Relaxor Ferroelectric Phase Transitions in Antiferroelectric-Based (Pb 0.50 Ba 0.50 )ZrO 3 Ceramics

Author

Listed:
  • Bhadra P. Pokharel

    (Materials Science and Engineering Program, Pulchowk Campus, Institute of Engineering (IOE), Tribhuvan University (TU), Lalitpur, Kathmandu 44700, Nepal)

  • Lok Kumar Shrestha

    (International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan)

  • Katsuhiko Ariga

    (International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
    Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8561, Chiba, Japan)

  • Dhananjai Pandey

    (School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India)

Abstract

Herein we demonstrate a novel (Pb 0.50 Ba 0.50 )ZrO 3 (PBZ50) ceramic that exhibits a reentrant relaxor ferroelectric phase transition in an antiferroelectric-based perovskite system. The dielectric measurement has confirmed that the imaginary part of the dielectric constant for the reentrant phase is nearly frequency independent below the freezing temperature. The reentrant behavior could be scaled to a phenomenological equation involving the Vogel–Fulcher relationship. These results were further complemented by the polarization measurements. The PBZ50 was fabricated using a semi-wet synthetic route involving a solid-state thermochemical reaction. We believe this unusual phase transition sequence in the PBZ50 material would be highly useful in high-density data storage devices.

Suggested Citation

  • Bhadra P. Pokharel & Lok Kumar Shrestha & Katsuhiko Ariga & Dhananjai Pandey, 2018. "Demonstration of Reentrant Relaxor Ferroelectric Phase Transitions in Antiferroelectric-Based (Pb 0.50 Ba 0.50 )ZrO 3 Ceramics," Energies, MDPI, vol. 11(4), pages 1-10, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:850-:d:139693
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