Melting properties of group-V elements and InSb |
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Authors: | J -P Gaspard R Bellissent A Menelle C Bergman R Ceolin |
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Institution: | (1) Institut de Physique, Université de Liège, B-4000 Sart-Tilman, Belgium;(2) CNRS, CECM, 15, rue G. Urbain, F-94407 Vitry-sur-Seine, France;(3) LLB, CEA-CNRS, F-91191 Gif-sur-Yvette Cedex, France;(4) CNRS, CTM, 26, rue du 141e Ria, F-13003 Marseille, France;(5) Faculté de Pharmacie, Boulevard Tonnelé, F-37042 Tours, Cedex, France |
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Abstract: | Summary In this paper, we study the structural properties of liquid group-V elements (and a compound InSb) and we analyse the differences
with their room temperature crystalline phases. Neutron diffraction experiments are performed using short-wavelength neutrons
(0.7 ?). We show different melting behaviours of a light element (As) and a heavy element (Sb) under study. Whereas As keeps
its coordination three upon melting, Sb is six-coordinated in the melt. Similarly, InSb has a coordination number increasing
from 4 to about 6 upon melting. Large entropies of melting are related to important structural variations.
Paper presented at the workshop ?Highlights on Simple Liquids?, held in Turin at ISI on 1–3 May, 1989. |
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Keywords: | Kinetic and transport theory |
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