Improving of the electrical and magnetic properties of BiFeO{sub 3} by doping with yttrium

Journal Article · Sun May 15 00:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2016.01.018· OSTI ID:22581527

Bobić, Jelena D. ^[1]; Stojadinović, Bojan S. ^[2]; Džunuzović, Adis S.; Petrović, Mirjana M. Vijatović ^[1]; Dohčević-Mitrović, Zorana D. ^[2]

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1. Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade (Serbia)
2. Center for Solid State Physics and New Materials, Institute of Physics, University of Belgrade, Pregrevica 118, 11000 Belgrade (Serbia)

Bismuth ferrite is one of the most promising multiferroic materials, and the main barriers for exploiting all of its specific properties are difficulties in obtaining pure, high resistive material with nanosized grains. Doping of BiFeO{sub 3} with different transition metals and rare earth elements is often used way for overcoming these obstacles. Yttrium doped bismuth ferrite, Bi{sub 1−x}Y{sub x}FeO{sub 3} (x = 0; 0.01; 0.03; 0.05; 0.1), was prepared by auto-combustion method. X-ray diffraction patterns and Raman results showed that partial phase transition from rhombohedral to orthorhombic structure took place at around 10 mol% of Y. Effect of Y doping on microstructure was studied from SEM micrographies, showing the reduction of grain size in doped samples. Electrical measurements showed continuous improvement of resistivity with Y doping, whereas the values of saturation and remnant polarizations exhibit maximums at around 5 mol% of Y. Yttrium doping also enhanced magnetic properties, leading to weak ferromagnetism.

• OSTI ID: 22581527
• Journal Information: Materials Research Bulletin, Vol. 77; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH COMPOUNDS
CONCENTRATION RATIO
DOPED MATERIALS
ELECTRICAL PROPERTIES
FERRATES
FERROMAGNETISM
GRAIN SIZE
IMPEDANCE
MAGNETIC PROPERTIES
NANOSTRUCTURES
ORTHORHOMBIC LATTICES
PHASE TRANSFORMATIONS
POLARIZATION
SCANNING ELECTRON MICROSCOPY
SPECTROSCOPY
TRIGONAL LATTICES
X-RAY DIFFRACTION
YTTRIUM