Fig. 5: Effect of different defect configurations on the electron transport in NbAs slabs.
From: Surface-dominated conductance scaling in Weyl semimetal NbAs

a–f Illustration of the different surface line-defect configurations studied in our NEGF calculations. g Transmission and h normalized resistance-area RA product for [100] transport in NbAs(001) with defects. Line defects reduce the net transmission, but the intercept remains nonzero and the corresponding RA remains below the bulk value, indicating that surface conduction persists. Only when the notch is made deep enough, such as for the 20-atom defect, the RA product begins to increase with decreasing thickness due to a significant reduction in the transmission.