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Title: Origin of enhanced magnetization in rare earth doped multiferroic bismuth ferrite

We report structural and magnetic properties of rare earth doped Bi{sub 0.95}R{sub 0.05} FeO{sub 3} (R = Y, Ho, and Er) submicron particles. Rare earth doping enhances the magnetization and the magnetization shows an increasing trend with decreasing dopant ionic radii. In contrast to the x-ray diffraction pattern, we have seen a strong evidence for the presence of rare earth iron garnets R{sub 3}Fe{sub 5}O{sub 12} in magnetization measured as a function of temperature, in selected area electron diffraction, and in Raman measurements. Our results emphasised the role of secondary phases in the magnetic property of rare earth doped BiFeO{sub 3} compounds along with the structural distortion favoring spin canting by increase in Dzyaloshinskii-Moriya exchange energy.
Authors:
; ;  [1] ; ;  [2]
  1. Department of Physics, Indian Institute of Technology Madras, Chennai 36 (India)
  2. National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 25 (India)
Publication Date:
OSTI Identifier:
22278038
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC RADII; BISMUTH COMPOUNDS; DOPED MATERIALS; ELECTRON DIFFRACTION; ERBIUM COMPOUNDS; FERRITE GARNETS; FERRITES; HOLMIUM COMPOUNDS; IRON OXIDES; MAGNETIC PROPERTIES; MAGNETIZATION; RAMAN SPECTROSCOPY; SPIN; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS