Nanoscale phase separation of GeS_2 glass

Liuchun Cai; P. Boolchand

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Nanoscale phase separation of GeS_2 glass

机译：GeS_2玻璃的纳米级相分离

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Molecular structure of Ge_xS_(100-x) glasses in the 30 < x < 34 atomic percentage range is examined by Raman scattering, ~(119)Sn Mossbauer spectroscopy, and temperature-modulated differential scanning calorimetry. The results show that the stoichiometric glass with x = 33.33 (T_g = 508 ℃) is chemically disordered. Raman scattering places mode strengths of corner-sharing Ge(S_(1/2))_4 tetrahedra (A), ethane-like Ge_2(S_(1/2)_6 units (B), and the distorted rocksalt Ge(S_(1/6)_6 units (C) at approximately 93.4:3.6:3.0 not normalized for mode cross-sections. Mossbauer spectroscopy places the concentration of these units as A:B:C = 76.2:8.8:15. The drastic reduction in the slope of the glass transition temperature T_g with Ge content x coincides with first appearance of these units once x exceeds 32.50, suggesting that these units are demixed and form separate nanophases to lower the global connectivity of the glass network.

机译：通过拉曼散射，〜（119）Sn Mossbauer光谱和温度调制的差示扫描量热法检查了在30

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《Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties》 |2002年第15期|共9页
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Liuchun Cai; P. Boolchand;
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1. Nanoscale phase separation of GeS_2 glass [J] . Liuchun Cai, P. Boolchand Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties . 2002,第15期

机译：GeS_2玻璃的纳米级相分离
2. Shift in elastic phase boundaries due to nanoscale phase separation in network glasses: the case of GexAsxS1-2x [J] . Qu T, Boolchand P Philosophical magazine: structure and properties of condensed matter . 2005,第8期

机译：由于网络玻璃中的纳米级相分离，弹性相界发生位移：GexAsxS1-2x
3. Suppression of the outwards-dispersing branches in hour-glass magnetic spectra induced by nanoscale phase separation in La_(2-x)Sr_xCoO_4 [J] . Guo H., Li Z. W., Sakong S., Physical review . 2019,第1期

机译：La_（2-x）Sr_xCoO_4的纳米尺度相分离在沙漏磁谱中抑制向外分散的分支
4. Nanoscale phase separation in metallic glasses studied by advanced electron microscopy techniques [C] . Third International Conference on Bulk Metallic Glasses论文集 . 2003

机译：通过先进的电子显微镜技术研究金属玻璃中的纳米级相分离
5. Development of Self-Assembled Nanoscale Templates via Microphase Separation Induced by Polymer Brushes. [D] . Chu, Elza. 2015

机译：通过聚合物刷诱导的微相分离开发自组装纳米级模板。
6. Local microstructure evolution at shear bands in metallic glasses with nanoscale phase separation [O] . Jie He, Ivan Kaban, Norbert Mattern, -1

机译：具有纳米级相分离的金属玻璃在剪切带处的局部微观结构演变
7. Shift in elastic phase boundaries due to nanoscale phase separation in network glasses: the case of GexAsxS1 2x [O] . Tao Qu, P. Boolchand 2004

机译：由于网络玻璃中的纳米级相分离导致弹性相界限的变化：Gexasxs1 2x的情况

Nanoscale phase separation of GeS_2 glass

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