The evolution of medium range order in GeAsSe glasses
Understanding of the medium range order (MRO) is important in glass science since many physical properties are correlated with it. Unfortunately the number of experimental methods to characterize it is still limited. Here we propose a combined approach using neutron diffraction and reverse Monte Carlo in order to determine the MRO in Ge-As-Se glasses. We are planning to make measurements at D4 for Ge3As24Se73, Ge11.5As24Se64.5 and Ge20As24Se56. We aim at exploring how the MRO evolves with the temperature and chemical compositions. In parallel to the experiments we will employ Reverse Monte Carlo method to simulate the structural factors of these glasses in order to understand the atomic arrangements, and thus extract the information of medium range order.
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DURNIAK Celine; CUELLO Gabriel; Henry E. Fischer and WANG RongPing. (2015). The evolution of medium range order in GeAsSe glasses. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-05-966
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