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Vibrational and EPR spectroscopic investigation of heavy‐metal‐oxide glasses and vitroceramics containing manganese
Author(s) -
Simon S.,
Baia L.,
Radu A.
Publication year - 2006
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1460
Subject(s) - electron paramagnetic resonance , raman spectroscopy , bismuth , manganese , chemistry , metal , oxide , analytical chemistry (journal) , relaxation (psychology) , crystallization , infrared , inorganic chemistry , nuclear magnetic resonance , organic chemistry , optics , physics , psychology , social psychology
Heavy‐metal‐oxide (HMO) glasses and vitroceramics of [3Bi 2 O 3 ·2PbO] and 20MnO·80[3Bi 2 O 3 ·2PbO] compositions were investigated by Raman, infrared (IR) and electron paramagnetic resonance (EPR) spectroscopies. Changes in the local structure of the heavy‐metal host glass induced by manganese addition, and those determined by partial crystallisation of samples are seen. Raman and IR spectroscopies have been employed in order to obtain information on the role of Bi 2 O 3 and PbO in the local structure of the investigated samples and on the effect of MnO on the bismuth and lead environments. EPR results have evidenced the influence of the vitreous 3Bi 2 O 3 ·2PbO network on Mn 2+ ions' environment and the changes in structural relaxation and magnetic interactions caused by sample crystallisation. Copyright © 2006 John Wiley & Sons, Ltd.