ORBi: Raty Jean-Yves - Evolution of the Peierls distortion in liquid As xSb 1-x compounds

Reference : Evolution of the Peierls distortion in liquid As xSb 1-x compounds


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/109697

Title :	Evolution of the Peierls distortion in liquid As xSb 1-x compounds
Language :	English
Author, co-author :	Raty, Jean-Yves [Université de Liège - ULg > Département de physique > Physique de la matière condensée]
	Gaspard, Jean-Pierre [Université de Liège - ULg > Département de physique > Département de physique]
	Ceolin, R. [> > > >]
	Bellissent, R. [> > > >]
Publication date :	1998
Journal title :	Journal of Non-Crystalline Solids
Publisher :	Elsevier Science
Volume :	232-234
Pages :	59-6464
Audience :	International
ISSN :	0022-3093
City :	Amsterdam
Country :	The Netherlands
Keywords :	[en] 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
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/109697
DOI :	10.1016/S0022-3093(98)00484-0
	10.1016/S0022-3093(98)00484-0
Other URL :	http://www.sciencedirect.com/science/article/pii/S0022309398004840

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