拉曼散射研究GexSe1−x玻璃化转变的结构变化

Progress of Theoretical Physics Supplement Pub Date : 2013-05-16 DOI:10.1143/PTPS.126.191

Yong Wang, O. Matsuda, Koichi Inoue, K. Murase

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引用次数: 1

摘要

用拉曼散射研究了GexSel-x (0 $ x $ 0.33)的玻璃化转变、结晶和熔化过程。拉曼光谱在玻璃化转变中表现出一些反常的变化。在这些与结构变化有关的异常特征的基础上，我们研究了玻璃态和液态gessel -x·的中范围结构。在0.04 < x < 0.18的Ge组成范围内，GeSe2和Se晶体比其他Ge组成更难获得。

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Structural Changes at Glass-Transition in GexSe1−x Studied by Raman Scattering

The glass-transition, crystallization and melting in GexSel-x (0 $ x $ 0.33) have been studied by Raman scattering. Raman spectra exhibit some anomalous changes at the glass transition. On the basis of these anomalous features which relate to the structural changes, we investigate a medium range structure in glassy and liquid GexSel-x· In the Ge compo sition range of 0.04 < x < 0.18, both GeSe2 and Se crystals are much more difficult to be obtained than in the other Ge composition.

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