This video shows the simulation and analysis of a systems with a series of potential barriers. Several powerful analytic features of Piece-wise Constant Potential Barrier Tool (PCPBT) are demonstrated, including the following:

• number and height of the barriers as well as the wells between barriers can easily be modified
• A single quantum well formed by two finite barriers result in resonance transmissions.
• A double quantum well slits the resonance peaks into two components.
• For N barriers, one gets N-1 quantum wells, resulting in resonance transmissions with N-1 peaks.
• The resonances peaks overlap and form a band.
• The positions of the peaks for a dispersion that is similar to the periodic potential dispersion computed in the standard Kroenig-Penney model

Researchers should cite this work as follows:

• Gerhard Klimeck, Benjamin P Haley (2009), "Piece-Wise Constant Potential Barriers Tool Demonstration: Bandstructure Formation with Finite Superlattices," https://nanohub.org/resources/6836.

  BibTex | EndNote

1. band structure
2. nanoelectronics
3. quantum mechanics
4. quantum transport
5. reflection coefficient
6. Superlattices
7. tool demonstration
8. transmission coefficient
9. tunneling