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

S. Meyer; J. Schaefer; C. Blumenstein; P. Hoepfner; A. Bostwick; J. L. McChesney; E. Rotenberg; R. Claessen

doi:10.1103/PhysRevB.83.121411

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

Strongly Correlated Electrons 2015-05-18 v2

Authors: S. Meyer , J. Schaefer , C. Blumenstein , P. Hoepfner , A. Bostwick , J. L. McChesney , E. Rotenberg , R. Claessen

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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.

Keywords

one-dimensional electron system au chains on ge(001) photoelectron k-space mapping fermi surface peierls distortion spectral function

Cite

@article{arxiv.1004.4382,
  title  = {Strictly One-Dimensional Electron System in Au Chains on Ge(001) Revealed By Photoelectron K-Space Mapping},
  author = {S. Meyer and J. Schaefer and C. Blumenstein and P. Hoepfner and A. Bostwick and J. L. McChesney and E. Rotenberg and R. Claessen},
  journal= {arXiv preprint arXiv:1004.4382},
  year   = {2015}
}

Comments

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

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

Abstract

Keywords

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