You must login before you can run this tool.
Quantum Point Contact
Simulates the conductance and associated wavefunctions of Quantum Point Contacts.
Version 1.1.1 - published on 02 Feb 2015
doi:10.4231/D3H70817B cite this
This tool is closed source.
Category
Published on
Abstract
This program, written originally by Richard Akis of Arizona State University, Tempe, Arizona, in fortran 90, calculates the conductance and associated wavefunctions for electron waves flowing through one or more quantum point contacts (QPCs), as a function of either bottom potential or magnetic field. It uses a transfer/scattering matrix approach to find the coefficients that enter the Landauer formula to calculate the conductance. The quantum point contact that has been implemented is based on a model suggested by Ando (T. Ando, "Quantum Point Contacts in Magnetic Fields", Phys. Rev. B, vol 44, pp 8017, 1991."
Credits
Richard Akis (ASU), Shaikh S. Ahmed (SIU), and David Ferry (ASU)
Sponsored by
Shaikh S. Ahmed would like to acknowledge the computational support from NSF 0855221 CRI II: Southern Illinois High-Performance Computing Infrastructure (SIHPCI)
Cite this work
Researchers should cite this work as follows:
-
T. Ando, "Quantum Point Contacts in Magnetic Fields", Phys. Rev. B, vol 44, pp 8017, 1991.