Atomic-scale control of graphene magnetism by using hydrogen atoms
Universidad Autónoma de Madrid · Centre National de la Recherche Scientifique · +5 more institutions
Abstract
Isolated hydrogen atoms absorbed on graphene are predicted to induce magnetic moments. Here we demonstrate that the adsorption of a single hydrogen atom on graphene induces a magnetic moment characterized by a ~20-millielectron volt spin-split state at the Fermi energy. Our scanning tunneling microscopy (STM) experiments, complemented by first-principles calculations, show that such a spin-polarized state is essentially localized on the carbon sublattice opposite to the one where the hydrogen atom is chemisorbed. This atomically modulated spin texture, which extends several nanometers away from the hydrogen atom, drives the direct coupling between the magnetic moments at unusually long distances. By using the…
Citation impact
- FWCI
- 43.11
- Percentile
- 100%
- References
- 62
Authors
10- HGHéctor González‐Herrero
Universidad Autónoma de Madrid
- JMJosé M. Gómez‐Rodríguez
Universidad Autónoma de Madrid
- PMPierre Mallet
Centre National de la Recherche Scientifique, Institut Néel, Université Grenoble Alpes
- MMMohammed Moaied
Zagazig University, Universidad Autónoma de Madrid
- JJJ. J. Palacios
Universidad Autónoma de Madrid
Topics & keywords
- Graphene
- Magnetism
- Scanning tunneling microscope
- Atomic units
- Hydrogen atom
- Atom (system on chip)
- Hydrogen
- Nanotechnology