Transfer-matrix method demo

This is a simulation of a charged particle traveling through a nanoscale layered semiconductor structure based on the transfer-matrix method.

For certain configurations of the potential profile, the transmittance curve may exhibit a resonance peak at the particle energies below the barrier height, which is quantum tunneling. This is the case in the default setting of the app below, with an electron traveling through two 2-nm wide rectangular barriers in a gallium arsenide (GaAs) layer.