We report large logarithmic corrections to the conductivity of two-dimensional electrons and holes in GaSb-InAs-GaSb double heterostructures. From ∼ 40 mK to 1 K, the conductivity increased with the logarithm of the temperature but with a slope as much as 30 times larger than estimated from the theories of weak localization and carrier interaction. The discrepancy apparently results from electron-hole interactions not included in the theory.
Published in Physical Review B, ed. Gene D. Sprouse, Volume 33, Issue 12, 1986, pages 8848-8850.
Washburn, S., Webb, R. A., Mendez, E. E., Chang, L. L., & Esaki, L. (1986). Interaction effects among two-dimensional electrons and holes. Physical Review B, 33(12), 8848-8850. DOI: 10.1103/PhysRevB.33.8848
© Physical Review B, 1986, American Physical Society