Mössbauer investigation of tin-containing chalcogenide glasses and glass-ceramics |
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| Authors: | Ji-Jian Cheng J Zarzycki JC Jumas M Ribes |
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| Institution: | 1. CNRS Glass Laboratory, University of Montpellier II, 34060 Montpellier Cedex, France;2. Glass Laboratory, Department of Materials Science and Engineering, Shanghai Institute of Chemical Technology, Shanghai 201107, China |
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| Abstract: | The parameters of Mössbauer spectra, namely isomer shift, quadrupole splitting and linewidth were obtained before and after crystallization of glass samples of composition xSn0.5Se0.5 (100x) (As0.1Ge0.3Se0.6) with x = 5 ～ 30 mol.%. It is demonstrated that the higher the crystallinity, the more the isomer shift decreases, this is probably due to the variation of average SnSe bond length. An electric field imbalance in the Sn nucleus caused by distortion of (Sn Se6) octahedra in glasses showed a greater quadrupole splitting as compared with glass-ceramics of the same tin content. |
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