Fig. 4: More pronounced 1D electronic structure on Nb11Si5Te22 (n = 5).
From: A tunable and unidirectional one-dimensional electronic system Nb2n+1SinTe4n+2
a STM image showing an area of Nb11Si5Te22 containing 3 chains. The middle chain possesses two point-defects (marked by arrows). Image size is 12 nm × 20 nm. b Position-dependent dI/dV spectra, which taken along the dotted line in a. “Particle in a box” type patterns are clearly discerned in the region between two defects. c dI/dV maps measured on the same area as a. Voltages are indicated. The set point is 200 mV, 1 nA. The electronic waves are all propagated along 1D chains.
