Department of Physics, 203 Dow Science, Central Michigan University, Mount Pleasant, MI 48859, USA.
J Phys Condens Matter. 2010 Mar 24;22(11):115402. doi: 10.1088/0953-8984/22/11/115402. Epub 2010 Feb 23.
The atomic-scale structure of germanium diselenide (GeSe(2)) glass has been revisited using a combination of high-energy x-ray diffraction and constrained reverse Monte Carlo simulations. The study shows that the glass structure may be very well described in terms of a continuous network of corner- and edge-sharing Ge-Se(4) tetrahedra. The result is in contrast to other recent studies asserting that the chemical order and, hence, network integrity in GeSe(2) glass are intrinsically broken. It is suggested that more elaborate studies are necessary to resolve the controversy.
使用高能量 X 射线衍射和约束反向蒙特卡罗模拟的组合，重新研究了锗硒化物（GeSe(2)）玻璃的原子尺度结构。研究表明，玻璃结构可以很好地用角共享和边缘共享 Ge-Se(4)四面体的连续网络来描述。这一结果与其他最近的研究结果形成对比，后者断言 GeSe(2)玻璃的化学有序性，从而网络完整性本质上是被破坏的。建议进行更精细的研究来解决争议。
