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Magnetic behavior of Cd2+ substituted cobalt ferrites
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- Noor, Saroaut (author)
- Dept of Physics, Khulna University of Engineering and Technology, Khulna, Bangladesh
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- Hakim, M. A. (author)
- Material Science Division, Atomic Energy Centre, Dhaka, Bangladesh
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- Sikder, S. S. (author)
- Dept of Physics, Khulna University of Engineering and Technology, Khulna, Bangladesh
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- (creator_code:org_t)
- Elsevier BV, 2012
- 2012
- English.
- In: Journal of Physics and Chemistry of Solids. - : Elsevier BV. - 0022-3697 .- 1879-2553. ; 73:2, s. 227-231
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The effect of Cd-substitution on the variation of saturation magnetization M,, Curie temperature T-c, and magnetic moments n(B) of Co1-xCdxFe2O4 (x=0.0-1.0 in steps of 0.1) ferrites have been investigated using SQUID magnetometer and impedance analyzer. The samples were prepared by conventional double sintering ceramic technique and found to be single-phase cubic spinel structure by X-ray diffraction. Saturation magnetization M-s, is found to increase with increase of Cd substitution attaining a maximum value at x=0.4 and decreases thereafter. Curie temperature decreases almost linearly with increasing x content up to x=0.7. Samples having x >= 0.8 display complex magnetic behavior with competing antiferromagnetic and ferromagnetic interactions with the manifestation of large hysteresis at low temperature and no sign of saturation. Samples with x > 0.8 show paramagnetic characteristic at T=5 K with no spontaneous magnetization revealed through Arrot-Belov-Kouvel (ABK) plots.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Magnetic material
- X-ray diffraction
- Magnetic properties
- TECHNOLOGY
- TEKNIKVETENSKAP
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
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- ref (subject category)
- art (subject category)
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