Temperature dependence of the electrical resistivity of liquid gallium between its freezing point (29.75 degrees C) and 752 degrees C

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Abstract
The resistivity was measured with a high relative accuracy ( approximately 10-3%) in order to determine the temperature derivative of resistivity and its dependence on temperature. Contrary to previous results, the temperature derivative of resistivity was found to be a nonlinear function of a complex character. The most striking feature of this function is a maximum at about 90 degrees C. Towards higher temperatures the temperature derivative decreases exponentially, in the manner similar to that found by the present authors for liquid Pb and Sn. The behaviour of the temperature derivative is compared with that of other physical quantities and a possible explanation suggested.