Improvement of magnetic and ferroelectric properties of BiFeO{sub 3} nanoparticles on Tb and Co substitution
- Department of Physics, University of Calcutta, Kolkata-700009 (India)
Tb and Co substituted bismuth ferrite nanoparticles (NPs) with chemical composition Bi{sub 1-x}Tb{sub x}Fe{sub 1-y}Co{sub y}O{sub 3} (x = 0, 0.05; y = 0, 0.05) have been synthesized by a sol-gel method and characterized by x-ray diffraction (XRD), Mossbauer spectroscopy, dc magnetization and electric polarization measurements. The aim of the present work is to improve ferroelectric properties of BiFeO{sub 3} by substitution of Tb{sup 3+} ions in Bi{sup 3+} site and magnetic properties by substitution of Co{sup 2+} in Fe{sup 3+} site. The XRD patterns of all prepared samples show formation of the desired phase along with a small amount of impurity. Room temperature Mossbauer spectroscopic studies reveal that all samples are in magnetically ordered state. Magnetic hysteresis loops of all samples indicate a significant enhancement of magnetic moment and coercivity whereas electric polarization measurements at room temperature reveal an improvement of ferroelectric properties in the co-substituted sample.
- OSTI ID:
- 22606657
- Journal Information:
- AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BISMUTH COMPOUNDS
COBALT ADDITIONS
COERCIVE FORCE
FERRITES
FERROELECTRIC MATERIALS
HYSTERESIS
IMPURITIES
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MOESSBAUER EFFECT
NANOPARTICLES
POLARIZATION
SOL-GEL PROCESS
TEMPERATURE RANGE 0273-0400 K
TERBIUM ADDITIONS
X RADIATION
X-RAY DIFFRACTION