Temperature Dependence of Electrical Resistivity of Metals

概要

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A general formula for the electrical resistivity of metals is obtained. Thisformula is applicable to any metals. When it is applied to crystalline metals,the usual phonon scattering resistivity is derived. When it is applied to amorphousor disordered metals, an increase in T' is predicted at low temperatures in addi-lion to the increase in T'. The coefficient of the 7"-term is shown to be proportionalto the residual resistivity. For highly resistive metals, it is shown that the usualphonon scattering is suppressed, and that the temperature dependence of theresistivity becomes small : A kind of random phase model for the resistivity ispresented. It is also shown that the resistivity due to impurity scattering increasesin T" at low temperatures and increases in ( -T) ' at high temperatures. Thetheory can also explain the saturation behavior of the resistivity with increasingtemperatures observed in J-15 compounds.
社団法人日本物理学会の論文
1978-04-15