POSSIBILITY OF ASYMMETRIC CHARGE OSCILLATIONS IN INAS CASB COUPLED QUANTUM-WELLS/

In this Letter, we have studied the possibility of existence of an asy mmetric electronic charge oscillation in the conduction band of an InA s/GaSb coupled quantum well system. With our method of calculation, we have integrated in space and time the effective mass Schrodinger equa tion for an exciton in order to study the tunneling process. It is fou nd that the asymmetric charge oscillations are given by the Coulomb ef fect between the electron-hole pair in our proposed coupled quantum we ll system.