Strictly One-Dimensional Electron System in Au Chains on Ge(001) Revealed By Photoelectron K-Space Mapping

Abstract

Atomic nanowires formed by Au on Ge(001) are scrutinized for the band topology of the conduction electron system by k-resolved photoemission. Two metallic electron pockets are observed. Their Fermi surface sheets form straight lines without undulations perpendicular to the chains within experimental uncertainty. The electrons hence emerge as strictly confined to one dimension. Moreover, the system is stable against a Peierls distortion down to 10 K, lending itself for studies of the spectral function. Indications for unusually low spectral weight at the chemical potential are discussed.

4 pages, 4 figures - revised version with added Fig. 2e) and additional references

References in corpus (5)

• New Model System for a One-Dimensional Electron Liquid: Self-Organized Atomic Gold Chains on Ge(001)
• New Luttinger liquid physics from photoemission on Li${}_{0.9}$Mo${}_6$O${}_{17}$
• Self-organized atomic nanowires of noble metals on Ge(001): atomic structure and electronic properties
• Conduction States with Vanishing Dimerization in Pt Nanowires on Ge(001) Observed with Scanning Tunneling Microscopy
• Dispersive resonance bands within the space charge layer of metal- semiconductor junction

Cited by in corpus (13)

• Interaction-range effects for fermions in one dimension
• Atomic scale variation of electron tunneling into a Luttinger liquid ? : High resolution scanning tunneling spectroscopy study on Au/Ge(001)
• Symmetry-Breaking Phase Transition without Peierls Mechanism in Conducting Monoatomic Chains
• Modeling 1D structures on semiconductor surfaces: Synergy of theory and experiment
• Gold-induced nanowires on the Ge(100) surface yield a 2D, and not a 1D electronic structure
• Structural Examination of Au/Ge(001) by Surface X-Ray Diffraction and Scanning Tunneling Microscopy
• The Two-Band Luttinger Liquid with Spin-Orbit Coupling: Applications to Monatomic Chains on Surfaces
• Electronic structure and signature of Tomonaga-Luttinger liquid state in epitaxial CoSb${}_{1-x}$ nanoribbons
• Local spectral properties of Luttinger liquids: scaling versus nonuniversal energy scales
• Combined large spin-splitting and one dimensional confinement in surface alloys
• Density of states anomalies in multichannel quantum wires
• Dimensionality of metallic atomic wires on surfaces
• Strictly one dimensional behavior emerging from dispersive two dimensional system: implications on metallic nanowires on semiconducting substrates