Determination of the sign of the quadrupole coupling constant (e(2)qQ) of Sn2+ in silicate glasses by Mossbauer spectroscopy
UNSPECIFIED. (1997) Determination of the sign of the quadrupole coupling constant (e(2)qQ) of Sn2+ in silicate glasses by Mossbauer spectroscopy. JOURNAL OF PHYSICS-CONDENSED MATTER, 9 (35). pp. 7477-7483. ISSN 0953-8984Full text not available from this repository.
High-field Sn-119 Mossbauer spectroscopy was performed on a range of tin-containing ternary and binary silicate glass systems. All the glasses unambiguously exhibited a positive value for e(2)qQ for the Sn2+ valence state. Determination of the sign of e(2)qQ indicates that the electron distribution around each Sn nucleus is similar at all the tin atoms, which is a significant finding for glasses. These results suggest that the electronic state of the Sn2+ is dictated by its non-bonding electron orbital, which has strong p(z) character, and which provides the dominant contribution to the electric field gradient present at the Sn-119 nucleus.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||JOURNAL OF PHYSICS-CONDENSED MATTER|
|Publisher:||IOP PUBLISHING LTD|
|Official Date:||1 September 1997|
|Number of Pages:||7|
|Page Range:||pp. 7477-7483|
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