Title: Self-Doping of Ultrathin Insulating Films by Transition Metal Atoms
Authors: Li, Zhe ×
Chen, H. -Y. T
Schouteden, Koen
Lauwaet, K
Giordano, L
Trioni, M. I
Janssens, Ewald
Iancu, Violeta
Van Haesendonck, Chris
Lievens, Peter
Pacchioni, G #
Issue Date: 17-Jan-2014
Publisher: American Physical Society
Series Title: Physical Review Letters vol:112 issue:2 pages:1-5
Article number: 026102
Abstract: Single magnetic Co atoms are deposited on atomically thin NaCl films on Au(111). Two different adsorption sites are revealed by high-resolution scanning tunneling microscopy (STM), i.e., at Na and at Cl locations. Using density functional based simulations of the STM images, we show that the Co atoms substitute with either a Na or Cl atom of the NaCl surface, resulting in cationic and anionic Co dopants with a high thermal stability. The dependence of the magnetic coupling between neighboring Co atoms on their separation is investigated via spatially resolved measurement of the local density of states.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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