Abstract
In this work, we have numerically integrated in space and time the effective-mass nonlinear Schrödinger equation for an electron wave packet in a bilayer electron system. Considering both polarized and unpolarized magnetic phases, we have calculated the tunneling dynamics between the two quantum wells when an external bias is applied. In our coupled quantum well system, we have considered a magnetic phase transition from the usual spin-polarized ground state to an unpolarized one. We have found the possibility of having a shift in the position of the resonant tunneling peak when the magnetic phase transition occurs.
- Received 20 March 2000
DOI:https://doi.org/10.1103/PhysRevB.62.7264
©2000 American Physical Society