Crystallographic and magnetic properties of CoCrxFe2−xO4 ferrite powders
作者： Kwang Pyo Chae , Young Bae Lee , Jae Gwang Lee , Sung Ho Lee
DOI: 10.1016/S0304-8853(00)00459-5
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摘要: Abstract The CoCr x Fe 2− O 4 (0.0⩽x⩽1.0) ferrite powders are fabricated by a sol–gel method. crystallographic and magnetic properties of investigated X-ray diffraction (XRD), Mossbauer spectroscopy, scanning electron micrography (SEM) vibrating sample magnetometer (VSM). structures spinel, the lattice constants size particle decrease with increasing Cr contents in . spectra, consisted two Zeeman sextets (0.0⩽ ⩽0.6) due to 3+ ions at tetrahedral octahedral sites, changed gradually doublet (0.8⩽ ⩽1.0) room temperature. variation parameters has been discussed powders. hyperfine fields Neel temperature contents. coercivity decreases fast but saturation magnetization slowly
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JAE‐GWANG LEE, JAE YUN PARK, CHUL SUNG KIM, Growth of ultra-fine cobalt ferrite particles by a sol–gel method and their magnetic properties Journal of Materials Science. ,vol. 33, pp. 3965- 3968 ,(1998) , 10.1023/A:1004696729673
M. Abe, M. Gomi, Magneto‐optic Kerr effect in CoFe2−xMxO4 (M=Mn, Cr, Al) and BaFe12−2x–COxTixO19 with tetrahedrally coordinated Co2+ Journal of Applied Physics. ,vol. 53, pp. 8172- 8174 ,(1982) , 10.1063/1.330282
D. C. Khan, M. Misra, A. R. Das, Structure and magnetization studies of Ti‐substituted Ni0.3Zn0.7Fe2O4 Journal of Applied Physics. ,vol. 53, pp. 2722- 2724 ,(1982) , 10.1063/1.330944
P. R. Edwards, C. E. Johnson, R. J. P. Williams, Mössbauer Spectra of Some Tetrahedral Iron (II) Compounds The Journal of Chemical Physics. ,vol. 47, pp. 2074- 2082 ,(1967) , 10.1063/1.1712239
G. A. Sawatzky, F. VAN DER Woude, A. H. Morrish, Cation Distributions in Octahedral and Tetrahedral Sites of the Ferrimagnetic Spinel CoFe2O4 Journal of Applied Physics. ,vol. 39, pp. 1204- 1205 ,(1968) , 10.1063/1.1656224
J. M. Daniels, A. Rosencwaig, Mössbauer study of the Ni–Zn ferrite system Canadian Journal of Physics. ,vol. 48, pp. 381- 396 ,(1970) , 10.1139/P70-054
A.D.D. Broemme, Correlation between thermal expansion and Seebeck coefficient in polycrystalline Co/sub 3/O/sub 4/ IEEE Transactions on Electrical Insulation. ,vol. 26, pp. 49- 52 ,(1991) , 10.1109/14.68226
G. A. Petitt, D. W. Forester, Mössbauer Study of Cobalt-Zinc Ferrites Physical Review B. ,vol. 4, pp. 3912- 3923 ,(1971) , 10.1103/PHYSREVB.4.3912
Ph. Tailhades, C. Villette, A. Rousset, G.U. Kulkarni, K.R. Kannan, C.N.R. Rao, M. Lenglet, Cation Migration and Coercivity in Mixed Copper Cobalt Spinel Ferrite Powders Journal of Solid State Chemistry. ,vol. 141, pp. 56- 63 ,(1998) , 10.1006/JSSC.1998.7914
H. Mohan, I.A. Shaikh, R.G. Kulkarni, Mössbauer and magnetization study of the mixed spinel CoFe2−xCrxO4 Solid State Communications. ,vol. 82, pp. 907- 910 ,(1992) , 10.1016/0038-1098(92)90717-N