Abstract
The samples of the series Co1+ySnyFe2- 2y- xCrxO4 ferrites with x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and y = 0.05, were prepared by the usual double sintering ceramic technique. The single- phase spinel structure of the samples was confirmed by using X- ray diffractometry technique. The lattice parameter ’a’ with an accuracy of ± 0.002 Å were determined using Bragg peaks of XRD pattern. The lattice parameter ’a’ decreases with concentration, x, which is due to the difference in the ionic radii of Cr3+ and Fe3+ ions. The X- ray intensity calculations were carried out in order to determine the possible cation distribution amongst tetrahedral (A) and octahedral [B] sites. The X- ray intensity calculations show Cr3+ ions occupying B site. The saturation magnetization, σs, and magneton number, nB (the saturation magnetization per formula unit), measured at 300 K determined from high field hysteresis loop technique decrease with increase in concentration, x, suggesting a decrease in ferrimagnetic behaviour. Thermal variation of low field a.c. susceptibility measurements from room temperature to about 800 K exhibits almost normal ferrimagnetic behaviour and the Curie temperature, TC determined from a.c. susceptibility data decreases with increase in x.
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References
Blasse G 1964Philips Res. Rep. Suppl. 3
Bradley F N 1971Materials for magnetic functions (New York: Hayden) p. 78
Buerger M G 1960Crystal structure analysis (New York: Wiley)
Cullity B D 1959Elements of X-ray diffraction (Reading, Mass: Addison Wesley)
Furuhashi H, Inagari M and Naka S 1973J. Inorg. Nuclear Chem. 35 3009
Gilleo M A 1960J. Phys. Chem. Solids 13 33
Goodenough J B and Loeb A L 1953Phys. Rev. 98 391
Joshi H H, Jotania R B and Kulkarni R G 1993Asian J. Phys. 2 88
Khan D C, Mishra M and Das A R 1982J. Appl. Phys. 53 2722
Kwang Pyo Chae, Young Bae Lee, Jae Gwang Lee and Sung Ho Lee 2000J. Magn. & Magn. Mater. 220 59
Neel L 1950C.R. Acad. Sci., Paris 230 375
Nogues J, Phig T, Jotania R B, Upadyay R V, Kulkarni R G and Rao K V 1991J. Magn. & Magn. Mater. 99 275
Ohinishi H and Teranishi T 1961J. Phys. Soc. Jpn 16 36
Otero Arean C, Rodriguez Blanco J L, Rubio Gonzalez J M and Trobajoa Fermandez M C 1990J. Mater. Sci. Lett. 9 229
Porta P, Stone F S and Turner R G 1974J. Solid State Chem. 11 135
Radhakrishnamurty C, Likhite S D and Shastry P 1971Philos. Mag. 23 503
Radhakrishnamurty C, Likhite S D and Sahasrabudhe P 1978Proc. Indian Acad. Sci. (Chem. Sci.) A87 245
Sawataky G A, Van der Wouds F and Morrish A H 1968J. Appl. Phys. 39 1204
Shinde S S, Jadhav K M, Bichile G K, Trivedi Bimal S and Kulkarni R G 1998Bull. Mater. Sci. 21 409
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Pandit, A.A., More, S.S., Dorik, R.G. et al. Structural and magnetic properties of Co1+ySnyFe2-2y-xCrxO4 ferrite system. Bull Mater Sci 26, 517–521 (2003). https://doi.org/10.1007/BF02707350
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DOI: https://doi.org/10.1007/BF02707350