Spatial mapping of the electronic states of a one-dimensional system.
Using low-temperature scanning tunneling microscopy and spectroscopy, we have recorded spatial maps of confined electronic states in the troughs between self-organized Pt nanowires on Ge(001) that are spaced 2.4 nm apart. Two sub-bands are resolved, which correspond to the lowest energy levels of a quantum mechanical particle in a box. As expected, the spatial dI/dV maps exhibit a maximum and a minimum in the middle of the troughs for the n = 1 and n = 2 states, respectively.
van Houselt
Arie
A
Solid State Physics, MESA+ Research Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.
Oncel
Nuri
N
Poelsema
Bene
B
Zandvliet
Harold J W
HJ
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004583:Electrons; D005857:Germanium / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D049329:Nanostructures; D010984:Platinum / Q000737:chemistry*; D011789:Quantum Theory; D013057:Spectrum Analysis; D013696:Temperature
D005857:Germanium; D010984:Platinum