Published April 2019 | Version v1
Journal article Metadata-only

Electric/magnetic behaviors of Nd/Ti co-doped BiFeO3 ceramics with morphotropic phase boundary

Creators

  • 1. Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150080 (China)
  • 2. Institute for Advanced Ceramics, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080 (China)
  • 3. Condensed Matter Science and Technology Institute and Department of Physics, School of Science, Harbin Institute of Technology, Harbin 150080 (China)
  • 4. School of Astronautics, Harbin Institute of Technology, Harbin 150080 (China)

Description

Morphotropic phase boundaries (MPB) consisting of rhombohedral, nonpolar orthorhombic and orthorhombic bridging phases were formed within the range of 0.1 ≤ x ≤ 0.2 in Bi1-xNdxFe0.97Ti0.03O3 ceramics. The intricate phase coexistence was verified by X-ray diffraction refinements, new modes at ~305 cm−1 in Raman spectra and microstructure analyses. Impedance tests confirmed the MPB ranges via resistance fluctuations and revealed additional arcs from phase boundaries. Ferroelectric and magnetic properties were synchronously improved at MPB resulting in the apparent magnetodielectric effect with a permittivity change rate of ~1.5% at 10000 Oe. Additionally, magnetic domains were reversed at low voltages.

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2019.01.025;
PII
S1359646219300429;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
164
Journal Page Range
p. 6-11
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
55043106
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CERAMICS; DOPED MATERIALS; ELECTRIC POTENTIAL; FERROELECTRIC MATERIALS; IMPEDANCE; MAGNETIC PROPERTIES; MICROSTRUCTURE; ORTHORHOMBIC LATTICES; PERMITTIVITY; RAMAN SPECTRA; TRIGONAL LATTICES; X-RAY DIFFRACTION
Descriptors DEC
COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DIFFRACTION; ELECTRICAL PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; SCATTERING; SPECTRA; THREE-DIMENSIONAL LATTICES

Optional Information

Copyright
Copyright (c) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.