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Structural studies in lead germanate glasses: EXAFS and vibrational spectroscopy
(1993-12-01)
The Raman, IR absorption and EXAFS spectra at the Ge K-edge and Pb LIII-edge of eight lead germanate glasses, with general formula xPbO(1-x)GeO2 with x = 0.20, 0.25, 0.33, 0.40, 0.50, 0.53, 0.56 and 0.60, have been measured. ...
Structural studies in lead germanate glasses: EXAFS and vibrational spectroscopy
(1993-12-01)
The Raman, IR absorption and EXAFS spectra at the Ge K-edge and Pb LIII-edge of eight lead germanate glasses, with general formula xPbO(1-x)GeO2 with x = 0.20, 0.25, 0.33, 0.40, 0.50, 0.53, 0.56 and 0.60, have been measured. ...
Influence of oxygen flow on crystallization and morphology of LiNbO 3 thin films
(2002-01-01)
Polymeric precursor solution (Pechini method) was used to deposit LiNbO 3 thin films by spin-coating on (100) silicon substrates. X-ray diffraction data of thin films showed that the increase of oxygen flow promotes a ...
Influence of oxygen flow on crystallization and morphology of LiNbO 3 thin films
(2002-01-01)
Polymeric precursor solution (Pechini method) was used to deposit LiNbO 3 thin films by spin-coating on (100) silicon substrates. X-ray diffraction data of thin films showed that the increase of oxygen flow promotes a ...
Oxygen diffusion in superconducting oxides
(Trans Tech Publications Ltd, 2008-01-01)
Since the discovery of high-temperature superconductivity of cuprate oxides, it has been clear that it is strongly affected by the oxygen content, which is also a crucial factor to determine other physical properties of ...
Oxygen diffusion in superconducting oxides
(Trans Tech Publications Ltd, 2008-01-01)
Since the discovery of high-temperature superconductivity of cuprate oxides, it has been clear that it is strongly affected by the oxygen content, which is also a crucial factor to determine other physical properties of ...
An Ab initio study of oxygen vacancies and doping process of Nb and Cr atoms on TiO2 (110) surface models
(1997-01-01)
We theoretically investigated how the formation of oxygen vacancies and the addition of niobium and chromium atoms as dopants modify the varistor properties of TiO2. The calculations were carried out at the HF level using ...
An ab initio study of oxygen vacancies and doping process of Nb and Cr atoms on TiO2 (110) surface models
(Wiley-Blackwell, 1997-12-05)
We theoretically investigated how the formation of oxygen vacancies and the addition of niobium and chromium atoms as dopants modify the varistor properties of TiO2. The calculations were carried out at the HF level using ...
An ab initio study of oxygen vacancies and doping process of Nb and Cr atoms on TiO2 (110) surface models
(Wiley-Blackwell, 1997-12-05)
We theoretically investigated how the formation of oxygen vacancies and the addition of niobium and chromium atoms as dopants modify the varistor properties of TiO2. The calculations were carried out at the HF level using ...