EXAFS study of glasses of the CaO-Ga2O3-GeO2 system

• Autorzy: Chełstowski D. , Witkowska A. , Rybicki J. , Padlyak B. , Trapananti A. , Principi E.
• Konferencja: 6th Seminar Porous Glasses-Special Glasses, PGL 2002, Szklarska Poręba, 22-26.IX.2002 r.
• Języki publikacji: EN

Abstrakty

EN

X-ray absorption spectroscopy (XAS) measurements for Ca3Ga2Ge3O12 and Ca3Ga2Ge4O14 glasses are presented. In particular, the extended X-ray absorption fine structure (EXAFS) spectra are analysed and local neighbourhood of Ga and Ge atoms is described in detail. The Ge/Ga atoms neighbourhood in considered glasses is compared with the data available for corresponding crystals. Performed comparative crystal-glass structural analysis confirms correlation between crystalline and glassy structures of the Ca3Ga2Ge3O12 and Ca3Ga2Ge4O14 compounds. Our results provide several new detailed data, and some general suggestions on the CaO–Ga2O3–GeO2 glass structure.

Słowa kluczowe

EN

oxide glasses; structural analysis; EXAFS

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2003
• Tom: Vol. 33, nr 1
• Strony: 125--132
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Chełstowski D.

• Faculty of Technical Physics and Applied Mathematics, and TASK Computer Centre, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-952 Gdańsk, Poland

autor

Witkowska A.

• Faculty of Technical Physics and Applied Mathematics, and TASK Computer Centre, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-952 Gdańsk, Poland

autor

Rybicki J.

• Faculty of Technical Physics and Applied Mathematics, and TASK Computer Centre, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-952 Gdańsk, Poland

autor

Padlyak B.

• Department of Physics, Kazimierz Wielki Academy of Bydgoszcz, pl. Weyssenhoffa 11, 85-072 Bydgoszcz, Poland

autor

Trapananti A.

• INFM UdR Camerino, Dipartimento di Fisica, Universita di Camerino, Via Madonna delle Carceri, 1-62032 Camerino, MC, Italy

autor

Principi E.

• INFM UdR Camerino, Dipartimento di Fisica, Universita di Camerino, Via Madonna delle Carceri, 1-62032 Camerino, MC, Italy

Bibliografia

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