Magnetic behavior of Cd2+ substituted cobalt ferrites
2012 (English)In: Journal of Physics and Chemistry of Solids, ISSN 0022-3697, E-ISSN 1879-2553, Vol. 73, no 2, 227-231 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2012. Vol. 73, no 2, 227-231 p.
Magnetic material, X-ray diffraction, Magnetic properties
Physical Sciences Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-171430DOI: 10.1016/j.jpcs.2011.10.038ISI: 000300265000015OAI: oai:DiVA.org:uu-171430DiVA: diva2:510923