Dielectric properties of the ternary TeO2/Nb2O5/ZnO glasses
β Scribed by Mohamad M. Ahmad; El Sayed Yousef; El Sayed Moustafa
- Book ID
- 108238918
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 300 KB
- Volume
- 371
- Category
- Article
- ISSN
- 0921-4526
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Vibrational photon echo decay in the CeO 2 -doped TeO 2 -Nb 2 O 5 -ZnO glass is observed with near-infrared femtosecond laser pulse at the temperature of 7.5 and 300 K. The photon echo signals exhibit an initial fast decay followed by an exponential decay. The anharmonic frequency splitting (D), the
Single and mixed transition metal ions doped tellurite glasses were investigated for dielectric properties in the frequency range 50 Hz to 5 MHz and temperature range 300-500 K. From the total conductivity derived from the dielectric spectrum the frequency exponent, s, and dc and ac components of th