title: Spatial mapping of the electronic states of a one-dimensional system.
abstract: 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.
authors.affiliation: Solid State Physics, MESA+ Research Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.
authors.forename: Arie
authors.initials: A
authors.lastname: van Houselt
authors.forename: Nuri
authors.initials: N
authors.lastname: Oncel
authors.forename: Bene
authors.initials: B
authors.lastname: Poelsema
authors.forename: Harold J W
authors.initials: HJ
authors.lastname: Zandvliet
mesh_terms: 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
chemical_list: D005857:Germanium; D010984:Platinum