Coulomb drag as a signature of the paired quantum Hall state

Article

关键词: ELECTRON-SYSTEMS;    SUPERCONDUCTORS;    METALS;    LAYERS;   

DOI  :  10.1103/PhysRevB.59.R7825

来源: SCIE

【 摘 要 】

Motivated by the recent Coulomb drag experiment of M. P. Lilly et at. [Phys. Rev. Lett. 80, 1714 (1998)], we study the Coulomb drag in a two-layer system with Landau-level filling factor nu = 1/2. We find that the drag conductivity in the incompressible paired quantum Hall state at zero temperature can be finite. The drag conductivity is also greatly enhanced above T-c, at which the transition between the weakly coupled compressible liquids and the paired quantum Hall liquid takes place. We discuss the implications of our results for the recent experiment. [S0163-1829(99)51712-8].

【 授权许可】

Free