Spontaneous Micro-Macro Ferroelectric Domain Switching in PbZrO_3-doped Pb(Ni_<1/3>Nb_<2/3>)O_3-PbTiO_3 System

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概要

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• The possibility of the existence of a spontaneous relaxor-normal ferroelectric transition was proposed and examined using 1-3 mol% PbZrO_3-doped Pb(Ni_<1/3>Nb_<2/3>)0_3-PbTiO_3 (PNN-PT) systems having tetragonal symmetry at room temperature. On cooling, the system with 60 mol% Pb(Ni_<1/3>Nb_<2/3>)O_3 underwent a spontaneous transition from a relaxor to a normal ferroelectric state. A microscopic examination demonstrated that the relaxor-normal ferroelectric transition corresponds to a micro-macro domain switching. Long-range ferroelectric domains below the transition temperature were characterized by twinlike 90° macrodomains with tetragonal symmetry. The relaxor-normal transition was further correlated with the rhombohedral-tetragonal first-order phase transition.

• 社団法人応用物理学会の論文
• 1995-04-15

著者

• Yoon Man-soon

  Department Of Materials Science And Engineering Pohang University Of Science And Technology (postech

• Jang Hyun

  Department Of Chemical Engineering Hanseo University

• Jang Hyun

  Department Of Materials Science And Engineering Pohang University Of Science And Technology (postech

• Kim Sunuk

  Research Institute of Industrial Science and Technology (RIST)

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• Spontaneous Micro-Macro Ferroelectric Domain Switching in PbZrO_3-doped Pb(Ni_Nb_)O_3-PbTiO_3 System

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