Pressure dependence of the electrical resistivity of some metallic glasses

Abstract
The electrical resistance of metallic glasses was measured as a function of temperature between 1.5 and 300K under pressures of up to 12 GPa (120 kbar). Depending on the system, the resistivity is either found to increase (Mg70Zn30) or to decrease (Cu57Zr43, Ti50Be40Zr10). This behaviour is in contrast to the negative temperature coefficient of resistivity which all the amorphous alloys considered here exhibit. The results are compared with theoretical predictions.