Analysis of Activation Energies &Experimental Evidence for Energetic Phase Separation in Ge<sub>x</sub>Se<sub>1-x</sub>Glassy System

• 作者: Anand Mohan Awasthi Deepak Sharma
• 来源期刊: 玻璃与陶瓷期刊(英文)
• 学科: 化学
• 关键词: Activation ENERGIES CHALCOGENIDE Glasses Glass Transition Heterogeneity Molecular Dynamics Structural Relaxation
• 年，卷（期）: 2014,（2）
• 页码范围: 38-41
• 页数: 4页
• 分类号: O6

摘要

Glass science reveals peculiar properties due to the lack of long range order and presence of heterogeneity in Chalcogenide glasses. In thermal studies, structural relaxation at the glass transition region is governed by the activation energy of the cooperative unit (zU). In the cooperative molecular dynamics, we are considering the analysis of three activation energies, namely activation energy per BMS (U), activation energy of the cooperative unit (zU) and the apparent activation energy (z2U). From the energetic dynamics of activation energy analysis across the GexSe1-x glass series, data represent three-phase segregation. From our data, we also observed that the value of UCRR/RTg across the GexSe1-x glass series is nominally changed from 34.343 to 36.19.