Analytical expressions of the electrical conductivity and the temperature coefficient of resistivity of two thin coaxial metallic wires

Study of the size effects in the electrical resistivity of ultrathin (<Cu 40 nm) films in the framework of the statistical conduction models

“…4 and 5. It appears clearly that these figures are in good agreement with the asymptotic equation (15) in the whole range of the experimental thickness, except at the lowest thickness (two experimental data, only). Furthermore, it must be noted that the author's experiments have shown that the electrical resistivity dropped from 32.34 ± 0.50 to 3.09 ± 0.03 cm, when the thickness increased from 11.5 to 15.3 nm.…”

“…(15) and the sophisticated model of Namba and the computed fittings given by the authors are not necessary for interpreting the experiments. The effects of the three types of scatterings are simultaneously taken into account and the value of the deduced specular reflection coefficient is very near from that given by the authors.…”

“…New formulations of both the electrical resistivity and its coefficient of temperature (t.c.r.) have been recently proposed [15].…”