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Structure of Self-Assembled Mn Atom Chains on Si(001)

Publié dansPhysical review letters, vol. 115, no. 25, 256104
Date de publication2015
Résumé

Mn has been found to self-assemble into atomic chains running perpendicular to the surface dimer reconstruction on Si(001). They differ from other atomic chains by a striking asymmetric appearance in filled state scanning tunneling microscopy (STM) images. This has prompted complicated structural models involving up to three Mn atoms per chain unit. Combining STM, atomic force microscopy, and density functional theory we find that a simple necklacelike chain of single Mn atoms reproduces all their prominent features, including their asymmetry not captured by current models. The upshot is a remarkably simpler structure for modeling the electronic and magnetic properties of Mn atom chains on Si(001).

Mots-clés
  • Single atom chains
  • Mn chains
  • One-dimensional systems
  • Scanning probe microscopy
Groupe de recherche
Financement
  • Swiss National Science Foundation - 144139
Citation (format ISO)
VILLARREAL, Renan et al. Structure of Self-Assembled Mn Atom Chains on Si(001). In: Physical review letters, 2015, vol. 115, n° 25, p. 256104. doi: 10.1103/PhysRevLett.115.256104
Fichiers principaux (1)
Article (Published version)
accessLevelPublic
Identifiants
ISSN du journal0031-9007
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Informations techniques

Création19/12/2015 11:54:00
Première validation19/12/2015 11:54:00
Heure de mise à jour15/03/2023 00:00:15
Changement de statut15/03/2023 00:00:15
Dernière indexation02/05/2024 17:11:47
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