Abstract
Abstract The resistance of Pt wires with cross-sectional areas (A) as small as 2.6 x 10−12 cm2 ( A =160 A ) has been studied at low temperatures (T). The wires exhibit a resistance rise as the temperature is decreased, and the variation of the rise with A and T is the same as that found previously for thin wires made from other materials. Combining the results for Pt with those of other materials we find that the resistance rise varies approximately linearly with the amount of disorder. This result is inconsistent with theories based on Coulomb interactions. If this result is interpreted in terms of current theories of localization, it implies that the inelastic mean free path is independent of the amount of disorder, a conclusion which is very difficult to reconcile with present ideas concerning inelastic scattering in dirty metals.
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