Pressure dependence of electrical resistivity for Mg-based amorphous alloys

Abstract

Measured pressure coefficients of resistance and the corresponding pressure coefficients of resistivity, estimated using 'law of mixtures' isothermal compressibility values, are reported for a series of Mg-based amorphous alloys. The pressure coefficients correlate with the thermopower and the resistivity. When combined with results for non-magnetic amorphous alloys containing transition metals, there are suggestions of universal correlations between the pressure coefficients and the electrical resistivity. Data are discussed in the framework of the diffraction model.