A logarithmic component of the resistance, magnetoresistance, and Hall effect was observed in a new superlattice system composed of semiconducting PbTe and semimetallic Bi. The behavior was consistent with the theoretical predictions for two-dimensional systems. It was found that the temperature dependence was dominated by the interaction effect, while the magnetic field dependence was mainly due to the localization effect.
ASJC Scopus subject areas
- Condensed Matter Physics