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Structure-potential relationship and nature of disorder in liquids and glassy solids

✍ Scribed by Subramanian Yashonath; V.C. Jyothi Bhasu

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
446 KB
Volume
189
Category
Article
ISSN
0009-2614

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✦ Synopsis

A method based on the minimal-spanning tree is extended to a collection of points in three dimensions. Two parameters, the average edge length and its standard deviation characterize the disorder. The structural phase diagram for a monatomic system of particles and the characteristic values for the uniform random distribution of points have been obtained. The method is applied to hard spheres and LennardJones systems. These systems occupy distinct regions in the structural phase diagram. The structure of the Lennard-Jones system approaches that of the defective close-packed arrangements at low temperatures whereas in the liquid regime, it deviates from the close-packed configuration.

* Communication No. 749 from the Solid State and Structural

Chemistry Unit.

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