The transfer matrix approach is analytically exact, and “arbitrary” heterostructures can apparently be handled through the discretization of potential changes. The approach appears to be quite appealing. However, the approach is inherently unstable for realistically extended devices which exhibit electrostatic band bending or include a large number of basis sets.
Researchers should cite this work as follows:
Gerhard Klimeck; Dragica Vasileska; Samarth Agarwal; Parijat Sengupta (2009), "Nanoelectronic Modeling Lecture 11: Open 1D Systems - The Transfer Matrix Method," https://nanohub.org/resources/8097.
Università di Pisa, Pisa, Italy