EXAFS of tellurium in the glasses of the B2O3‒TeO2 system

Akiyoshi Osaka, Qiu Jianrong, Tokuro Nanba, Jun Takada, Yoshinari Miura, Takeshi Yao

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Abstract

TeK-edge spectra were measured for binary glasses of compositions 0.16B2O3 · 0.84TeO2 and 0.301B2O3 · 0.699TeO2. Te{single bond}O bond length and coordination number of Te atoms were analyzed to be very similar to those of paratellurite. Within errors of measurement, all the Te atoms were four-coordinated and TeO+3 units were absent in the glasses. It was concluded that some other mechanism should be present to compensate for a negative charge on four-coordinated boron atoms in the glasses.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume142
Issue numberC
DOIs
Publication statusPublished - 1992

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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