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Title: Enhanced magnetoelectric properties of BiFeO{sub 3} on formation of BiFeO{sub 3}/SrFe{sub 12}O{sub 19} nanocomposites

Abstract

Nanocomposites (NCs) comprising (1−x) BiFeO{sub 3} (BFO) and x SrFe{sub 12}O{sub 19} (SRF) (x = 0.1, 0.2, 0.3, and 0.4) have been prepared by a sol-gel route. Presence of pure phases of both BiFeO{sub 3} (BFO) and SrFe{sub 12}O{sub 19} (SRF) in the NCs for x = 0.3 and 0.4 has been confirmed by Rietveld analysis of XRD data though a minor impurity phase is observed in the case of x = 0.1 and 0.2 NCs. Transmission electron micrographs of the NCs show that particles are mostly spherical with average size of 30 nm. M-H measurements at 300 and 10 K indicate predominantly ferrimagnetic behavior of all the NCs with an increasing trend of saturation magnetization values with increasing content of SRF. Dielectric constant (ε{sub r}) of the NCs at room temperature shows a dispersive behavior with frequency and attains a constant value at higher frequency. ε{sub r} − T measurements reveal an increasing trend of dielectric constant of the NCs with increasing temperature and show an anomaly around the antiferromagnetic transition temperature of BFO, which indicates magnetoelectric coupling in the NCs. The variation of capacitance in the presence of magnetic field confirms the enhancement of magnetoelectric effect in the NCs. {sup 57}Fe Mössbauer spectroscopy results indicate themore » presence of only Fe{sup 3+} ions in usual crystallographic sites of BFO and SRF.« less

Authors:
; ;  [1];  [2]
  1. UGC-DAE Consortium for Scientific Research, Kolkata Centre, III/LB-8, Bidhannagar, Kolkata 700098 (India)
  2. Department of Physics, University of Calcutta, Kolkata 700009 (India)
Publication Date:
OSTI Identifier:
22596811
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 23; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTIFERROMAGNETISM; AUGMENTATION; BISMUTH OXIDES; CAPACITANCE; CRYSTALLOGRAPHY; DIELECTRIC MATERIALS; IMPURITIES; IRON 57; IRON IONS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; MOESSBAUER SPECTROMETERS; NANOCOMPOSITES; PERMITTIVITY; SOL-GEL PROCESS; SPHERICAL CONFIGURATION; TEMPERATURE RANGE 0273-0400 K; TRANSITION TEMPERATURE; X-RAY DIFFRACTION

Citation Formats

Das, Anusree, Chatterjee, Souvik, Das, Dipankar, E-mail: ddas@alpha.iuc.res.in, and Bandyopadhyay, Sudipta. Enhanced magnetoelectric properties of BiFeO{sub 3} on formation of BiFeO{sub 3}/SrFe{sub 12}O{sub 19} nanocomposites. United States: N. p., 2016. Web. doi:10.1063/1.4954075.
Das, Anusree, Chatterjee, Souvik, Das, Dipankar, E-mail: ddas@alpha.iuc.res.in, & Bandyopadhyay, Sudipta. Enhanced magnetoelectric properties of BiFeO{sub 3} on formation of BiFeO{sub 3}/SrFe{sub 12}O{sub 19} nanocomposites. United States. doi:10.1063/1.4954075.
Das, Anusree, Chatterjee, Souvik, Das, Dipankar, E-mail: ddas@alpha.iuc.res.in, and Bandyopadhyay, Sudipta. Tue . "Enhanced magnetoelectric properties of BiFeO{sub 3} on formation of BiFeO{sub 3}/SrFe{sub 12}O{sub 19} nanocomposites". United States. doi:10.1063/1.4954075.
@article{osti_22596811,
title = {Enhanced magnetoelectric properties of BiFeO{sub 3} on formation of BiFeO{sub 3}/SrFe{sub 12}O{sub 19} nanocomposites},
author = {Das, Anusree and Chatterjee, Souvik and Das, Dipankar, E-mail: ddas@alpha.iuc.res.in and Bandyopadhyay, Sudipta},
abstractNote = {Nanocomposites (NCs) comprising (1−x) BiFeO{sub 3} (BFO) and x SrFe{sub 12}O{sub 19} (SRF) (x = 0.1, 0.2, 0.3, and 0.4) have been prepared by a sol-gel route. Presence of pure phases of both BiFeO{sub 3} (BFO) and SrFe{sub 12}O{sub 19} (SRF) in the NCs for x = 0.3 and 0.4 has been confirmed by Rietveld analysis of XRD data though a minor impurity phase is observed in the case of x = 0.1 and 0.2 NCs. Transmission electron micrographs of the NCs show that particles are mostly spherical with average size of 30 nm. M-H measurements at 300 and 10 K indicate predominantly ferrimagnetic behavior of all the NCs with an increasing trend of saturation magnetization values with increasing content of SRF. Dielectric constant (ε{sub r}) of the NCs at room temperature shows a dispersive behavior with frequency and attains a constant value at higher frequency. ε{sub r} − T measurements reveal an increasing trend of dielectric constant of the NCs with increasing temperature and show an anomaly around the antiferromagnetic transition temperature of BFO, which indicates magnetoelectric coupling in the NCs. The variation of capacitance in the presence of magnetic field confirms the enhancement of magnetoelectric effect in the NCs. {sup 57}Fe Mössbauer spectroscopy results indicate the presence of only Fe{sup 3+} ions in usual crystallographic sites of BFO and SRF.},
doi = {10.1063/1.4954075},
journal = {Journal of Applied Physics},
number = 23,
volume = 119,
place = {United States},
year = {Tue Jun 21 00:00:00 EDT 2016},
month = {Tue Jun 21 00:00:00 EDT 2016}
}