Giant room temperature multiferroicity and domain structures in hot-press sintered Bi0.85Sm0.15Fe0.97Sc0.03O3ceramics

Changan Wang, Lin Yang, Zhongwen Li, Min Zeng, Aihua Zhang, Minghui Qin, Xubing Lu, Xingsen Gao, Jinwei Gao, Kwok Ho Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

In this work, Bi0.85Sm0.15Fe0.97Sc0.03O3ceramics were prepared by rapid hot pressing. Their crystal structures, dielectric and multiferroic properties were studied with an emphasis on microscopic ferroelectric and ferromagnetic domains characterizations. X-ray diffraction data revealed a diphase structure consisting of rhombohedra R3C and orthorhombic Pbnm. The ferroelectric polarization and magnetization measurements showed the ceramics, possessing simultaneously a giant remanent polarization of 42.36 μC/cm2and a high remanent magnetization of 0.134 emu/g at room temperature. Moreover, the regularly striped ferroelectric and ferromagnetic domain structures have been identified and analyzed by combining transmission electron microscopy and piezoresponse/magnetic force microscopy.
Original languageEnglish
Pages (from-to)12764-12769
Number of pages6
JournalCeramics International
Volume43
Issue number15
DOIs
Publication statusPublished - 15 Oct 2017

Keywords

  • BiFeO 3
  • Ceramics
  • Domain structures
  • Multiferroic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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