The Structure and Electrical-Properties of Liquid Semiconductors .2. Electron-Transport In Liquid Ni Te Alloys

The resistivity and thermoelectric power of liquid Ni-Te alloys have been measured as a function of temperature over a wide range of compositions. It is shown that the resistivity of liquid Te can be halved by the addition of less than 10 at % Ni. Comparison with other liquid alloys containing Te is made and a unified model for the atomic and electronic structure is proposed

The Thermoelectric Power and Resistivity of Liquid Co-Ni

The thermoelectric power, S, and electrical resistivity, ?, have been measured as functions of concentration, c, for the liquid alloy systems Co-Ni. It turns out that both ?(c) and S (c) follow the theoretical predictions of Evans et al (1971 phys. Lett. 35A 57) if a low effective valence (of the order of 0.2) can be assumed. For valencies near unity, theory and experiment do not agree

The Structure And Electrical-Properties Of Liquid Semiconductors: I. The Structure Of Liquid NiTe2 AND NiTe

The structure of liquid NiTe2 and NiTe has been investigated by applying the technique of neutron diffraction to isotopically enriched samples. The three partial structure factors relating to Ni-Ni, Te-Te and Ni-Te correlations have been sucessfully extracted from the experimental date. It is concluded that tellurium exists in these liquids as a dense assembly of Te2- ions. The average coordination of Ni2+ is characterised by approximately three Ni2+ at 2.54Å with four Te2- ions at 2.56Å for NiTe and approximately two Ni2+ ions at 2.81Å with four Te2- ions at 2.56 Å for NiTe2. Comparison is made with the results of a new analysis of earlier data taken on liquid CuTe