Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/9561
Title: Mössbauer and infrared studies of manganese doped iron borate glasses
Authors: Lal, Roshan
Sharma, N D
Sharma, H K
Chandra, Kailash
Keywords: Mössbauer study
Infrared spectra
iron borate glasses
glasses
Issue Date: Jan-2004
Publisher: CSIR
Abstract: The infrared absorption spectra of Manganese-doped Iron borate glasses (X=0,10,15,20&30 mol% MnO) have been investigated to find out the role played by Manganese on the structure of these glasses. MnO was gradually introduced to replace Fe<sub>2</sub>O<sub>3</sub> in the series of manganese doped iron borate glasses containing 60% B<sub>2</sub>O<sub>3</sub> . The structural changes induced were consistent with Mn<sub>2</sub>O<sub>3</sub> formulation and were inferred by monitoring the I.R. spectra of these glasses in the range 200-4000 cm<sup>-1</sup> by KBr Technique. The similar ionic radii of Fe<sup>3+</sup> and Mn<sup>3+</sup> cause no structural changes in either series as observed from infrared spectroscopy, which show that the Fe<sup>3+</sup> ions concentration at B-site is replaced by Mn<sup>3+</sup> ions. Mössbauer Technique was applied to study the effect of manganese doping at the Fe site for all the samples.
Description: 25-30
URI: http://hdl.handle.net/123456789/9561
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(01) [January 2004]

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