Complex magnetic properties of TbMn{sub 1-x}Fe{sub x}O{sub 3} (x = 0.1 and 0.2) nanoparticles prepared by the sol-gel method

Journal Article · Mon May 23 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947722· OSTI ID:22606306

Das, A.; Chatterjee, S.; Bandyopadhyay, S. ^[1]

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1. Department of Physics, University of Calcutta, Kolkata-700009 (India)

TbMn{sub 1-x}Fe{sub x}O{sub 3} nanoparticles (NPs) with x = 0, 0.1 and 0.2 have been prepared by adopting the chemical sol-gel method. Phase identification and particle size estimation are done by XRD analysis. M-H measurements at 5 K indicate a complete ferromagnetic behaviour in the Fe-doped samples with large coercivity whereas the pristine sample shows presence of both ferromagnetic and antiferromagnetic orders. ZFC and FC magnetization curves of all samples show signature of antiferromagnetic ordering of both terbium and manganese magnetic moments along with a systematic shift of ordering temperatures with Fe substitution. {sup 57}Fe Mössbauer spectroscopic measurements of the Fe-doped samples at room temperature confirm the paramagnetic behaviour and reduction of electric field gradient around Fe probe atoms with increase of Fe concentration.

• OSTI ID: 22606306
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1731; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANTIFERROMAGNETISM
COERCIVE FORCE
CONCENTRATION RATIO
DOPED MATERIALS
ELECTRIC FIELDS
FERRITES
IRON 57
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE
MANGANESE COMPOUNDS
NANOPARTICLES
PARAMAGNETISM
PARTICLE SIZE
SOL-GEL PROCESS
TEMPERATURE RANGE 0273-0400 K
TERBIUM COMPOUNDS
X-RAY DIFFRACTION