Summary
A linear relation between the average temperature coefficient of resistivity of a diluted alloy between 273°K and 373°K and the residual resistance measured below 4°K gives a quantitative determination of the ratio between the temperature-dependent and temperature-independent parts of the increase of resistance of the base metal caused by alloying. A linear relation being valid for a range of concentrations of the solute metal below 1 atom per cent, this ratio is a constant for a given binary alloy. For a few arbitrarily chosen cases of gold- and copper-alloys with nickel, iron and cobalt, the ratio proves to be smaller than one tenth determined at 273°K.
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References
See, among others J. O. Linde, Elektrische Widerstandseigenschaften der verdünnten Legierungen des Kupfers, Silbers und Goldes, Gleerupska Univ. Bokhandeln, Lund, Sverige, 1939.
Gerritsen, A. N. and J. O. Linde, Commun. Kamerlingh Onnes Lab., Leiden No. 290d; Physica18 (1952) 877; see figure 7.
Additional information
Communication No. 305a from the Kamerlingh Onnes Laboratorium, Leiden, Nederland
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Gerritsen, A.N., Van Der Aa, J.M.L.C. The temperature-dependent and temperature-independent parts of the increase of resistance due to impurities in a metal a simple method of obtaining their ratio. Appl. sci. Res. 6, 191–196 (1956). https://doi.org/10.1007/BF03185035
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DOI: https://doi.org/10.1007/BF03185035