EXPERIMENTAL SINGLE-PARAMETER TEMPERATURE AND MAGNETIC-FIELD CONDUCTANCE FUNCTION

It is shown that the temperature dependent magnetoresistance data of a sample in the weak antilocalization regime lies on a single curve of d In R(B, T)/d In B versus In (R(B, T)/R(O, T)). R(B, T) is the resistivity of the sample, B is the applied magnetic field and T is temperature. This result is consistent with the single-parameter zero temperature scaling theory of conduction. It also suggests that, in the presence of a magnetic field and strong spin-orbit scattering, a single-parameter scaling type function is adequate in describing the resistivity.