The structural and magnetic properties of dual phase cobalt ferrite

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486138.do
DOI
10.1038/s41598-017-02784-z
Title
The structural and magnetic properties of dual phase cobalt ferrite
Description
Authors extend their appreciation to the International ScientificPartnership Program ISPP at King Saud University for funding thisresearch work through ISPP#0032. This study was supported by the GlobalFrontier Program through the Global Frontier Hybrid Interface Materials(GFHIM) of the National Research Foundation of Korea (NRF) funded by theMinistry of Science, ICT & Future Planning 10 (2013M3A6B1078874).
abstract
The bismuth (Bi3+)-doped cobalt ferrite nanostructures with dual phase, i.e. cubic spinel with space group Fd3m and perovskite with space group R3c, have been successfully engineered via self-ignited sol-gel combustion route. To obtain information about the phase analysis and structural parameters, like lattice constant, Rietveld refinement process is applied. The replacement of divalent Co2+ by trivalent Bi3+ cations have been confirmed from energy dispersive analysis of the ferrite samples. The micro-structural evolution of cobalt ferrite powders at room temperature under various Bi3+ doping levels have been identified from the digital photoimages recorded using scanning electron microscopy. The hyperfine interactions, like isomer shift, quadrupole splitting and magnetic hyperfine fields, and cation distribution are confirmed from the Mossbauer spectra. Saturation magnetization is increased with Bi3+-addition up to x = 0.15 and then is decreased when x = 0.2. The coercivity is increased from 1457 to 2277 G with increasing Bi3+-doping level. The saturation magnetization, coercivity and remanent ratio for x = 0.15 sample is found to be the highest, indicating the potential of Bi3+-doping in enhancing the magnetic properties of cobalt ferrite.
provenance
Made available in Cube on 2018-09-28T15:59:32Z (GMT). No. of bitstreams: 0
language
English
author
Gore, Shyam K.
Jadhav, Santosh S.
Jadhav, Vijaykumar V.
Patange, S. M.
Naushad, Mu.
Mane, Rajaram S.
Kim, Kwang Ho
orcid
Naushad, Mu/0000-0001-6056-587X; Jadhav, Santosh/0000-0003-4252-6791
accessioned
2018-09-28T15:59:32Z
available
2018-09-28T15:59:32Z
issued
2017
citation
SCIENTIFIC REPORTS(7)
issn
2045-2322
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486138.do
Funder
과학기술정보통신부
Funding Program
글로벌프론티어지원
Project ID
1711052677
Jurisdiction
Rep.of Korea
Project Name
Development of Principal Technologies Related with Hybrid Interface for New Applications
rights
openAccess
type
article


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