Electrical properties of amorphous films of TeTl alloys

Amorphous films of TeTl alloys have been prepared with compositions in the range 20–70% Tl either by co-evaporation of the constituent elements or by a modification of the flash evaporation method. Measurements were made of the conductivity as a function of both composition and temperature. The cond...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1972, Vol.8, p.798-803
Main Authors: Ferrier, R.P, Prado, J.M, Anseau, M.R
Format: Article
Language:English
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Summary:Amorphous films of TeTl alloys have been prepared with compositions in the range 20–70% Tl either by co-evaporation of the constituent elements or by a modification of the flash evaporation method. Measurements were made of the conductivity as a function of both composition and temperature. The conductivity of the as-deposited alloys plotted as a function of composition shows minima at Tl 2Te n ( n = 1–7) and at Tl 3Te 2 and Tl 5Te 3; at each of these compositions there is a maximum in the activation energy versus composition plot. A band structure model that could explain the electrical properties of these films is given.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(72)90230-X