Article (Scientific journals)
Evolution of the Peierls distortion in liquid As xSb 1-x compounds
Raty, Jean-Yves; Gaspard, Jean-Pierre; Céolin, R. et al.
1998In Journal of Non-Crystalline Solids, 232-234, p. 59-64
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Keywords :
Theoretical or Mathematical, Experimental/ antimony alloys; arsenic alloys; liquid semiconductors; liquid structure; neutron diffraction; tight-binding calculations/ Peierls distortion; liquid As xSb 1-x compounds; local order; liquid binary alloy; short-wavelength neutron scattering; coordination number; interatomic distances; As concentration; Vegard's rule; simple tight-binding model; core repulsion hardness; As-Sb/ A6125 Studies of specific liquid structures/ AsSb/bin As /bin Sb/bin
Abstract :
[en] The local order in the liquid binary alloy As xSb 1-x (0lesxles1) is studied by short-wavelength (lambda=0.7 Aring) neutron scattering. The coordination number (Z) and the interatomic distances (d) are analyzed in terms of the As concentration: Z increases continuously, from a value of 3.5 for pure arsenic to a value of 6.3 for pure antimony, whereas d shows a departure from Vegard's rule. The interatomic distance increases in the range 0.15lesxles1.00 and is almost constant in the range 0.00lesxles0.15. A simple tight-binding model is developed, which indicates that the relevant parameter is the hardness of the core repulsion between the atoms
Disciplines :
Chemistry
Physics
Author, co-author :
Raty, Jean-Yves  ;  Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Gaspard, Jean-Pierre  ;  Université de Liège - ULiège > Département de physique > Département de physique
Céolin, R.;  Laboratoire Léon Brillouin, BP2, 91911 Gif-sur-Yvette Cedex, France
Bellissent, R.
Language :
English
Title :
Evolution of the Peierls distortion in liquid As xSb 1-x compounds
Publication date :
1998
Journal title :
Journal of Non-Crystalline Solids
ISSN :
0022-3093
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
232-234
Pages :
59-64
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 January 2012

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