Abstract
An interacting double-layer system, with uniform positive background, is studied at finite temperature in the presence of a strong magnetic field corresponding precisely to filling in each layer. By mapping this system to composite fermions in zero field, we investigate the momentum-transfer rate between the layers. As a result of the residual gauge interactions, it turns out that the drag rate is enhanced at low temperatures, varying as due to transverse gauge exchange while the contribution of Chern-Simons scalar exchange is reduced to as is the case of disordered systems.
- Received 5 December 1996
DOI:https://doi.org/10.1103/PhysRevB.56.4098
©1997 American Physical Society