A STUDY OF THE SHORT-RANGE ORDERING IN GEXSBYTE100-X-Y GLASSES BY X-RAY-ABSORPTION SPECTROSCOPY

Authors
SAITER JM MA Q BENAZETH S BELHADJI M VAUTIER C
Citation
Jm. Saiter et al., A STUDY OF THE SHORT-RANGE ORDERING IN GEXSBYTE100-X-Y GLASSES BY X-RAY-ABSORPTION SPECTROSCOPY, Materials letters, 19(5-6), 1994, pp. 287-290
Citations number
11
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
19
Issue
5-6
Year of publication
1994
Pages
287 - 290
Database
ISI
SICI code
0167-577X(1994)19:5-6<287:ASOTSO>2.0.ZU;2-X
Abstract
The short-range order around Ge atoms in GexSbyTe(100-x-y) (x = 15, y = 0.5, 3 and 5) glasses has been investigated by using X-ray absorptio n spectroscopy. Our structural results unambiguously show that Ge atom s in GexSbyTe(100-x-y) are fourfold coordinated by uniquely Te atoms a t the distance 2.60 angstrom and that no Ge-Ge homopolar bonds and no Ge-Sb bonds exist in these glasses.