Electron transport inLa100−xAlxmetallic glasses

Values of the electrical resistivity, temperature coefficient of resistivity, thermopower, and superconducting transition temperature for a series of ${\mathrm{La}}_{100\mathrm{-}\mathrm{x}}$ ${\mathrm{Al}}_{\mathrm{x}}$ metallic glasses prepared both as ‘‘splat-cooled’’ foils and ‘‘melt-spun’’ ribbons are reported. Differences between the two types of samples are discussed. We argue that the dominant contribution to the conductivity and thermopower is from La d states.