Subatomic-scale resolution with SPM: Co adatom on p(2 1)Cu(110):O

R. Turanský, K. Palotás, J. Brndiar, Y. J. Li, Y. Sugawara, I. Štich

Research output: Contribution to journalArticle

Abstract

We study the limits of SPM subatomic resolution in imaging orbital magnetic features on a model system of a Co atom on a p(2 × 1)Cu(110):O surface. We show that scanning tunneling spectroscopies allow the determination of the occupation of the Co d shells and the value of the Hubbard U in the DFT + U modeling, and that standard near-contact AFM can in principle image the asymmetry due to partial filling of the d shells at close distances in the small-amplitude regime. Due to the partially ionic character of Co, a faint asymmetry is predicted to also arise in the electrostatic force. We anticipate these features to be even stronger for a transition metal adsorbate featuring larger departures from sphericality in charge/spin densities.

Original languageEnglish
Article number095703
JournalNanotechnology
Volume30
Issue number9
DOIs
Publication statusPublished - Jan 4 2019

Keywords

  • AFM
  • DFT
  • Hubbard U
  • STM
  • subatomic resolution
  • transition metal adatom

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Subatomic-scale resolution with SPM: Co adatom on p(2 1)Cu(110):O'. Together they form a unique fingerprint.

  • Cite this

    Turanský, R., Palotás, K., Brndiar, J., Li, Y. J., Sugawara, Y., & Štich, I. (2019). Subatomic-scale resolution with SPM: Co adatom on p(2 1)Cu(110):O. Nanotechnology, 30(9), [095703]. https://doi.org/10.1088/1361-6528/aaf6dc