CURRENT DRAG IN A SINGLE-QUANTUM-WELL

We derive an expression for the contribution to the resistivity from t he carrier-carrier scattering between two subbands with different mass es in a single quantum well. The effects of the true wave functions of the carriers in the direction normal to the quantum well are taken in to account. The calculations are done within the generalized Drude app roach and with the RPA screening matrix. Numerical results for general temperatures are presented for a p-type centre-doped GaAs quantum wel l and compared with experiments.