TY  - JOUR
AU  - Moors, Kristof
AU  - Wagner, Christian
AU  - Soltner, Helmut
AU  - Lüpke, Felix
AU  - Tautz, F. Stefan
AU  - Voigtländer, Bert
TI  - Distributed Current Injection into a One-Dimensional Ballistic Edge Channel
JO  - Physical review letters
VL  - 135
IS  - 18
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2025-04324
SP  - 186301
PY  - 2025
AB  - We generalize Landauer’s theory of ballistic transport in a one-dimensional (1D) conductor to situations where charge carrier injection and extraction are not any more confined to electrodes at either end of the channel, but may occur along its whole length. This type of distributed injection is expected to occur from the two-dimensional (2D) bulk of, e.g., a quantum spin (or anomalous) Hall insulator to its topologically protected edge states. We apply our conceptual solution to the case of two metal electrodes contacting the 2D bulk, enabling us to derive criteria that discriminate ballistic from resistive edge channels in multiterminal transport experiments.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1103/l47r-plxq
UR  - https://juser.fz-juelich.de/record/1047466
ER  -