Abstract
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 language | English (US) |
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Article number | 155304 |
Pages (from-to) | 1553041-15530411 |
Number of pages | 13977371 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 63 |
Issue number | 15 |
DOIs | |
State | Published - 2001 |