X-ray diffraction and Mössbauer Spectroscopic Study of BaCo0.5xZn0.5xTix Fe12-2xO19 (M-type hexagonal ferrite) | ||||
Egyptian Journal of Solids | ||||
Article 8, Volume 26, Issue 2, 2003, Page 197-203 PDF (347.36 K) | ||||
DOI: 10.21608/ejs.2003.150158 | ||||
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Abstract | ||||
A series of pure polycrystalline M-type hexagonal ferrite with the formula BaCo0.5xZn0.5xTixFe12-2xO19 ( x = 0.0, 0.4, 0.8, 1.2, 1.6, 2.0) has been synthesized and studied by x-ray diffraction and Mössbauer spectroscopy. With increasing substitution the Mössbauer spectra change from magnetically ordered (x=0) towards magnetically ordered with strong line broadening (X= 0.4 to 1.6) to nonmagnetic (x=2.0), due to decreasing of Curie temperatures. Differential line broadening and relative area of components indicate that for small values of x, substitutions occurs preferentially in 4f1 and 4f2 sites indirectly affecting Fe in the 12k site. | ||||
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