Local order and metal–non-metal transition in Cd xTe 1− x: a neutron diffraction study

Local order in the Cd x Te 1− x (for 0.5 ⩽ x ⩽ 1) system has been investigated by means of thermal neutron scattering to study a semiconductor-to-metal transition as a function of concentration in the 50–100% Cd range. The coordination number has been evaluated from the pair correlation functions. I...

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Bibliographic Details
Published inJournal of non-crystalline solids Vol. 250; pp. 297 - 300
Main Authors Prigent, G., Bellissent, R., Ceolin, R., Fischer, H.E., Gaspard, J.P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1999
Subjects
N130
L135
M200
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Summary:Local order in the Cd x Te 1− x (for 0.5 ⩽ x ⩽ 1) system has been investigated by means of thermal neutron scattering to study a semiconductor-to-metal transition as a function of concentration in the 50–100% Cd range. The coordination number has been evaluated from the pair correlation functions. It is consistent with a semiconducting property for liquid Cd 0.5Te 0.5 having a coordination number close to 4 and with a metallic conductivity for liquid cadmium, having a compact environment and a coordination number of about 10. We discuss the critical concentration for semiconductor-to-metal transition and the sharpness of this transition.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(99)00252-5