Phys. Rev. Lett. 103, 096104 (2009) [4 pages]Atom-By-Atom Quantum State Control in Adatom Chains on a SemiconductorReceived 5 May 2009; published 27 August 2009 The vertical manipulation of native adatoms on a III–V semiconductor surface was achieved in a scanning tunneling microscope at 5 K. Reversible repositioning of individual In atoms on InAs(111)A allows us to construct one-atom-wide In chains. Tunneling spectroscopy reveals that these chains host quantum states deriving from an adatom-induced electronic state and substantial substrate-mediated coupling. Our results show that the combined approach of atom manipulation and local spectroscopy is capable to explore atomic-scale quantum structures on semiconductor platform. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.096104
DOI:
10.1103/PhysRevLett.103.096104
PACS:
68.37.Ef, 68.47.Fg, 73.20.At, 81.16.Ta
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