Landauer conductance without two chemical potentials

Alex Kamenev, Walter Kohn

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We present a theory of the four-terminal conductance for the multichannel tunneling barrier, which is based on the self-consistent solution of Shrödinger, Poisson, and continuity equations. We derive results for the case of a barrier embedded in a long wire with and without disorder. We also recover known expressions for the conductance of the barrier placed into a ballistic constriction. Our approach avoids a problematic use of two chemical potentials in the same system.

Original languageEnglish (US)
Article number155304
Pages (from-to)1553041-15530411
Number of pages13977371
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number15
StatePublished - 2001

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