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IJPAP Vol.42(01) [January 2004] >

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
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 Fe2O3 in the series of manganese doped iron borate glasses containing 60% B2O3 . The structural changes induced were consistent with Mn2O3 formulation and were inferred by monitoring the I.R. spectra of these glasses in the range 200-4000 cm-1 by KBr Technique. The similar ionic radii of Fe3+ and Mn3+ cause no structural changes in either series as observed from infrared spectroscopy, which show that the Fe3+ ions concentration at B-site is replaced by Mn3+ ions. Mössbauer Technique was applied to study the effect of manganese doping at the Fe site for all the samples.
Page(s): 25-30
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.42(01) [January 2004]

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