Step-edge barriers: Truths and kinetic consequences

Kentaro Kyuno, Gert Ehrlich

研究成果: Article

35 引用 (Scopus)

抄録

Observations of individual atoms on metal surfaces have shown that the diffusion potential at descending steps is not the simple repulsive barrier usually assumed in crystal growth. Instead, atoms may be held in asymmetric traps at step edges, and there are significant distortions of the potential near ascending steps. That the presence of step-edge traps instead of repulsive barriers can have a crucial effect on atomic kinetics is demonstrated by analyzing three processes important in crystal growth: the lifetime of atoms before incorporating into a cluster, dissociation of atoms from lattice steps, and incorporation on vicinal surfaces.

元の言語English
ジャーナルSurface Science
394
発行部数1-3
出版物ステータスPublished - 1997 12 19
外部発表Yes

Fingerprint

Atoms
Kinetics
kinetics
Crystallization
Crystal growth
atoms
crystal growth
traps
Metals
metal surfaces
dissociation
life (durability)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

これを引用

Step-edge barriers : Truths and kinetic consequences. / Kyuno, Kentaro; Ehrlich, Gert.

:: Surface Science, 巻 394, 番号 1-3, 19.12.1997.

研究成果: Article

Kyuno, Kentaro ; Ehrlich, Gert. / Step-edge barriers : Truths and kinetic consequences. :: Surface Science. 1997 ; 巻 394, 番号 1-3.
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