期刊
COMPUTER PHYSICS COMMUNICATIONS
卷 147, 期 1-2, 页码 166-169出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0010-4655(02)00238-2
关键词
amorphous; intermediate range order; molecular dynamics
The structural properties of liquid SiSe2 are studied by using first-principles molecular dynamics simulations. A comparative analysis involving liquid GeSe2 is carried out by focusing on partial pair correlation functions and coordination numbers. Both systems are characterized by intermediate range order. However, chemical order is more enhanced in liquid SiSe2 than in liquid GeSe2, leading to a larger percentage of AX(4) tetrahedra and a smaller number of homopolar bonds. (C) 2002 Elsevier Science B.V. All rights reserved.
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