Neutron diffraction studies of GexSe1-x glasses

Ramesh Rao, N. ; Sangunni, K. S. ; Gopal, E. S. R ; Krishna, P. S. R. ; Chakravarthy, R. ; Dasannacharya, B. A. (1995) Neutron diffraction studies of GexSe1-x glasses Physica B: Condensed Matter, 213-214 . pp. 561-563. ISSN 0921-4526

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Neutron diffraction studies were performed on GexSe1-x glasses for x= 0.1,0.2, 0.33 and 0.4. The structure factor S(Q) shows maximum intermediate-range order for x = 0.33. Analysis of the two main peaks in T(r) shows that these glasses have Ge(Se½)4 tetrahedra. Glasses with x ≤ 0.2 consist of Se-chains cross-linked with Ge-tetrahedra while for x ≥ 0.2 Ge-tetrahedra are present in both edge- and corner-shared configurations.

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ID Code:10205
Deposited On:04 Nov 2010 06:56
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