Search results for: SCHNAKENBERG RELATION

• Mechanism of hopping conduction in Be–Fe–Al–Te–O semiconducting glasses and glass–ceramics

  Publication

  • N. A. Wójcik
  • N. S. Tagiara
  • D. Möncke
  • E. Kamitsos
  • S. Ali
  • J. Ryl
  • R. J. Barczyński

  - JOURNAL OF MATERIALS SCIENCE - Year 2022

  Electrical properties of beryllium-alumino-tellurite glasses and glass–ceramics doped with iron ions were studied using impedance spectroscopy. The conductivity was measured over a wide frequency range from 10 mHz to 1 MHz and the temperature range from 213 to 473 K. The D.C. conductivity values showed a correlation with the Fe-ion concentration and ratio of iron ions on different valence states in the samples. On the basis of...

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