Mesoscopic hierarchic polarization structure in the relaxor ferroelectrics Pb[(Mg1/3Nb2/3)1xTix]O3

K. Namikawa, M. Ishino, M. Matsushita, K. Ohwada, M. Kishimoto, J. Mizuki, N. Hasegawa, and M. Nishikino
Phys. Rev. B 100, 184110 – Published 14 November 2019

Abstract

Mesoscopic polarization structures such as polar nanoregions and polarization domain walls are the key factors connecting microscopic fundamental polarization structures with macroscopic practical dielectric properties. A snapshot observation of the domain in the relaxor ferroelectrics Pb[(Mg1/3Nb2/3)1xTix]O3 just in the vicinity of morphotropic phase boundary region was performed by use of 7-ps single shot soft x-ray laser pulse. A self-assembled evolution of the oblique polarization domain was observed in Pb[(Mg1/3Nb2/3)72.2Ti27.8]O3 under the sample temperature decreased with the thermal equilibrium condition. Based on energetic discussion, antiphase shift of domain wall pairs keeping flat boundaries was proposed for the dielectric response. A sharp enhancement in the dielectric response at the vicinity of morphotropic phase boundary region reported previously was recognized as evidence for the hierarchic nature of the present oblique polarization domain wall.

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  • Received 22 July 2017
  • Revised 12 September 2019

DOI:https://doi.org/10.1103/PhysRevB.100.184110

©2019 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

K. Namikawa1,*, M. Ishino2, M. Matsushita3,†, K. Ohwada4,5, M. Kishimoto2, J. Mizuki5, N. Hasegawa2, and M. Nishikino2

  • 1Department of Physics, Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei-shi, Tokyo 184–8501, Japan
  • 2Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology, 8–1–7 Umemidai, Kizugawa-shi, Kyoto 619–0215, Japan
  • 3Research Laboratories, JFE Mineral Co., Ltd., 1 Niihama, Chuou, Chiba-shi, Chiba 260–0826, Japan
  • 4Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology, 1–1–1 Kouto, Sayo, Sayo-gun, Hyogo 679–5148, Japan
  • 5Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda-shi, Hyogo 669–1337, Japan

  • *Corresponding author: namikawa@u-gakugei.ac.jp
  • Retired.

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Issue

Vol. 100, Iss. 18 — 1 November 2019

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