Reference : Local orders in II-VI liquid compounds
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Physical, chemical, mathematical & earth Sciences : Physics
Local orders in II-VI liquid compounds
Gaspard, Jean-Pierre mailto [Université de Liège - ULg > Département de physique > Département de physique]
Raty, Jean-Yves mailto [Université de Liège - ULg > Département de physique > Physique de la matière condensée]
Ceolin, R. [> > > >]
Bellissent, R. [> > > >]
Journal of Non-Crystalline Solids
Elsevier Science
Yes (verified by ORBi)
The Netherlands
[en] Experimental/ cadmium compounds ; electronegativity ; II-VI semiconductors ; liquid semiconductors ; liquid structure ; melting ; mercury compounds ; neutron diffraction ; zinc compounds/ local order ; neutron scattering ; melting ; fourfold coordination ; semiconductors ; sixfold coordination ; electronegativity ; repulsive potential hardness ; entropy ; liquid structure ; CdTe ; HgTe ; ZnTe/ A6125 Studies of specific liquid structures A6470D Solid-liquid transitions/ CdTe/bin Cd /bin Te/bin ; HgTe/bin Hg /bin Te/bin ; ZnTe/bin Te /bin Zn/bin
[en] The structure of liquid CdTe, HgTe and ZnTe is studied by neutron scattering. Upon melting, drastically different behaviors are found: CdTe and ZnTe keep their fourfold coordination in the melt and remain semiconductors, whereas HgTe becomes sixfold coordinated and metallic. This dissimilarity is discussed in terms of the electronegativity difference and of the repulsive potential hardness. Entropic aspects are also discussed

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