Origin of enhanced magnetization in rare earth doped multiferroic bismuth ferrite

Journal Article · Fri Feb 21 00:00:00 EST 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4865958· OSTI ID:22278038

Nayek, C.; Thirmal, Ch.; Tamilselvan, A.; Balakumar, S. ^[1]

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1. National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 25 (India)

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.

• OSTI ID: 22278038
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

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