Structural investigation of Fe2O3-TeO2-B2O3-SrO glasses by EPR

被引：8

作者：

Ardelean, I ^{[1
]}

Peteanu, M ^{[1
]}

Simon, V ^{[1
]}

Ciorcas, F ^{[1
]}

Ioncu, V ^{[1
]}

机构：

[1] Univ Babes Bolyai, Fac Phys, R-3400 Cluj Napoca, Romania

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2001年 / 20卷 / 10期

关键词：

D O I：

10.1023/A:1010949404770

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tellurite glasses having viterous matrices were structurally investigated by electron paramagnetic resonance (EPR) of paramagnetic ions. The EPR absorption spectra was due to the presence of Fe3+ paramagnetic ions in the investigated glasses. Isolated Fe3+ ions were detected in rhombically distorted octahedral sites subjected to strong crystal field effects. Super-exchange interactions were observed due to antiferromagnetically coupled Fe3+-Fe3+ and Fe2+-Fe2+ ions. The evolution obtained for the EPR parameters of the absorption spectrum was explained by the ferrous and ferric ion interactions.

引用

页码：947 / 949

页数：3

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