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Title: Effect of Gd and Zr co-substitution on multiferroic properties of BiFeO{sub 3}

Single phase Bi{sub 1−x}Gd{sub x}Fe{sub 1−y}Zr{sub y}O{sub 3} (x=0.06;y=0, x= 0.10, y=0 and x=0.10,y= 0.03) nanoparticles were prepared to study the combined effect of Gd and Zr substitution on structural, magnetic and optical properties of BiFeO3. Rietveld refinement of X-ray diffraction patterns predicted that sample with x=0.06, y=0 was indexed to rhombohedral structure while samples with x=0.10, y=0 and x=0.10, y=0.03 were crystallized in multiphase (rhombohedral + orthorhombic). Magnetic properties were significantly enhanced with increasing concentration of Gd ions, however, magnetization reduced slightly with addition of 3% Zr ions in the system. Electron spin Resonance analysis indicated that breaking of spin cycloid is the main reason for enhancement of magnetization. Optical properties were investigated and direct band gap was found for all the samples.
Authors:
; ;  [1]
  1. Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida- 201307 (India)
Publication Date:
OSTI Identifier:
22269370
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRON SPIN RESONANCE; GADOLINIUM IONS; MAGNETIC PROPERTIES; MAGNETIZATION; NANOSTRUCTURES; OPTICAL PROPERTIES; ORTHORHOMBIC LATTICES; PARTICLES; SPIN; TRIGONAL LATTICES; X-RAY DIFFRACTION; ZIRCONIUM IONS