Size-dependent quantum diffusion of Gd atoms within Fe nano-corrals

We systematically studied the size-dependent quantum diffusion of Gd atoms within Fe circular quantum corrals on Ag(111). By varying the size of the quantum corrals, different types of patterns are observed inside the corrals, including a single dot and circular orbits for the diffusion of Gd adatom...

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Bibliographic Details
Published in:Surface science 2013-12, Vol.618 (C), p.148-153
Main Authors: Hu, J., Cao, R.X., Miao, B.F., Liu, Z., Zhong, Z.F., Sun, L., You, B., Wu, D., Zhang, W., Hu, An, Bader, S.D., Ding, H.F.
Format: Article
Language:English
Subjects:
Atom diffusion
Circular orbits
Computer simulation
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Diffusion
Electronics
Exact sciences and technology
Iron
Kinetic Monte Carlo simulation
MATERIALS SCIENCE
Monte Carlo methods
Nano-corral
Orbits
Physics
Quantitative analysis
Quantum size effect
Scanning tunneling microscopy
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Summary:We systematically studied the size-dependent quantum diffusion of Gd atoms within Fe circular quantum corrals on Ag(111). By varying the size of the quantum corrals, different types of patterns are observed inside the corrals, including a single dot and circular orbits for the diffusion of Gd adatoms. In addition, the motion of the adatoms also forms circular-like orbits outside the corral. Via quantitative analysis, we confirm that the regions with adatoms' high visiting probability are consistent with the positions of the local electronic density-of-states maxima, both inside and outside the corrals within a
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2013.08.020