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Title: Structure and properties of Pb(Lu{sub 1/2}Nb{sub 1/2})O{sub 3}–0.2PbTiO{sub 3} relaxor ferroelectric crystal

Graphical abstract: The relaxor state of the crystal was demonstrated by the dielectric behavior. - Highlights: • PLN–0.2PT ferroelectric crystal was obtained by the TSSG technique. • The super-lattice reflections were identified by XRD and TEM results. • The PLN–0.2PT crystal is a typical relaxor ferroelectric. - Abstract: Ferroelectric crystal Pb(Lu{sub 1/2}Nb{sub 1/2})O{sub 3}–0.2PbTiO{sub 3} (PLN–0.2PT) was successfully obtained by a top-seed solution growth technique. At room temperature the symmetry was orthorhomic according to X-ray diffraction (XRD). The super-lattice reflections were identified by XRD and transmission electron microscope (TEM). The micro-domain structure was detected by TEM. The temperature dependence of the dielectric constant (ϵ′) shows a typical relaxor behavior. The temperature dependence of coercive electric field and remnant polarizations were investigated, which also shows the relaxor feature.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [1] ;  [1] ; ; ; ;  [4] ;  [4]
  1. College of Physics and Energy, Fujian Normal University, Fuzhou, Fujian 350117 (China)
  2. (China)
  3. College of Materials Science and Engineering, Fujian Normal University, Fuzhou, Fujian 350117 (China)
  4. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)
Publication Date:
OSTI Identifier:
22475814
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 67; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL GROWTH; CRYSTAL STRUCTURE; CRYSTALS; DOMAIN STRUCTURE; FERROELECTRIC MATERIALS; LEAD COMPOUNDS; LUTETIUM COMPOUNDS; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; PERMITTIVITY; POLARIZATION; REFLECTION; SYMMETRY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TITANATES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION