Support

Support Options

Submit a Support Ticket

 

Questions and Answers

Status: Closed

0 Like

George Pau

fermi energy

In determining the density of the electrons, what fermi level do you used? Do you assume a value or do you calculate it at every iteration?

Report abuse

Chosen Answer

  1. 0 Like 0 Dislike

    Saumitra Raj Mehrotra

    Hello,

    No fermi level is used in determining electron density.
    Electron density is calculated using Non Equilibrium Greens function formalism. Fermi level is defined only in the source/drain contacts where equilibrium is maintained.

    Reply Report abuse

    Please login to answer the question.

    1. 0 Like 0 Dislike

      George Pau

      Do you fix the Fermi level at the source to be zero and Fermi level at the drain to be negative of the applied voltage? If that is the case, we then expect the solution from the Poisson equation to adjust to the appropriate level such that the we have an appropriate potential to be fed back into our Schrodinger equation?

      Reply Report abuse

      Please login to answer the question.

      1. 0 Like 0 Dislike

        Saumitra Raj Mehrotra

        That is correct. Poisson adjusts the potential to reach self consistency.

        Report abuse

0 Responses

No other responses made.

nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.