Mössbauer studies of Sn4+/Nb5+ substituted Mn-Zn ferrites

被引：0
|
作者：
A. D. P. Rao
S. B. Raju
S. R. Vadera
D. R. Sharma
机构：
[1] Andhra University,Department of Nuclear Physics
[2] Andhra University,Department of Physics
[3] Defence Laboratory,Defence Research Development Organization
来源：
Bulletin of Materials Science | 2003年 / 26卷
关键词：
Mn-Zn ferrites; Mössbauer studies;
D O I：
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学科分类号：
摘要：
At room temperature, Mössbauer spectra of Sn4+/Nb5+ substituted Mn- Zn ferrites have been taken to understand the site occupancy of substituted ions. The results indicate that both the substituted ions occupy tetrahedral (A) site only at lower concentration of substitution while at higher concentration they occupy both tetrahedral and octahedral sites. At higher concentration of Nb substitution a doublet has been observed besides sextets. The possibility of canting existence on octahedral sites has been discussed. The observed variations of the hyperfine fields, isomer shift, line widths and B/A peak area ratio with the ferrite composition are interpreted.
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页码：505 / 507
页数：2
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