electrochemical potentials of electrodes in two terminal device

[jerry]

Dear,
    When i calculate a two probe system, i find that the electrochemical potentials of electrodes shown in the transmission spectrum are the Fermi level of electrodes plus and minus 0.5*the applied voltage no matter how the left electrode voltage or right electrode voltage is set. Is this so?

[Anders Blom]

That's correct, because it's only the difference in voltage (the actual applied bias) that matters.

[jerry]

Thank you very much!