• DOI:10.1103/physrevresearch.2.023309
• Corpus ID: 209202824

Single-Co Kondo effect in atomic Cu wires on Cu(111)

@article{Nel2019SingleCoKE,
  title={Single-Co Kondo effect in atomic Cu wires on Cu(111)},
  author={Nicolas N{\'e}el and J{\"o}rg Kr{\"o}ger and Malte Sch{\"u}ler and Bin Shao and Tim Oliver Wehling and Alexander Kowalski and Giorgio Sangiovanni},
  journal={arXiv: Strongly Correlated Electrons},
  year={2019}
}

• N. Néel, J. Kröger, +4 authors G. Sangiovanni
• Published 11 December 2019
• Physics
• arXiv: Strongly Correlated Electrons

Linear atomic chains containing a single Kondo atom, Co, and several nonmagnetic atoms, Cu, were assembled atom by atom on Cu(111) with the tip of a scanning tunneling microscope. The resulting one-dimensional wires, Cu$_m$CoCu$_n$ ($0\leq m, n\leq 5$), exhibit a rich evolution of the single-Co Kondo effect with the variation of $m$ and $n$, as inferred from changes in the line shape of the Abrikosov-Suhl-Kondo resonance. The most striking result is the quenching of the resonance in CuCoCu$_2$ and Cu$_2$CoCu$_2$ clusters. State-of-the-art first-principles calculations were performed to unravel possible microscopic origins of the remarkable experimental observations.