Brownian Motion of Vacancy Islands on Ag(111)

Karina Morgenstern, G. Rosenfeld, Bene Poelsema, George Comsa

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Abstract

The motion of monatomic deep vacancy islands on crystal surfaces is studied both theoretically and experimentally. We develop a new theoretical model which allows us to deduce the microscopic mechanism of mass transport from measuring the diffusion coefficients of the vacancy islands as a function of their size. This model is applied to experimental results obtained with a fast scanning tunneling microscope on Ag(111) at room temperature. The observed scaling is consistent with a mechanism where the microscopic mass transport is dominated by diffusion of adatoms across the vacancy island rather than along the island boundary.
Original languageUndefined
Pages (from-to)2058-2061
Number of pages4
JournalPhysical review letters
Volume74
Issue number74
DOIs
Publication statusPublished - 1995

Keywords

  • METIS-128895
  • IR-61220

Cite this

Morgenstern, Karina ; Rosenfeld, G. ; Poelsema, Bene ; Comsa, George. / Brownian Motion of Vacancy Islands on Ag(111). In: Physical review letters. 1995 ; Vol. 74, No. 74. pp. 2058-2061.
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Morgenstern, K, Rosenfeld, G, Poelsema, B & Comsa, G 1995, 'Brownian Motion of Vacancy Islands on Ag(111)' Physical review letters, vol. 74, no. 74, pp. 2058-2061. https://doi.org/10.1103/PhysRevLett.74.2058

Brownian Motion of Vacancy Islands on Ag(111). / Morgenstern, Karina; Rosenfeld, G.; Poelsema, Bene; Comsa, George.

In: Physical review letters, Vol. 74, No. 74, 1995, p. 2058-2061.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Brownian Motion of Vacancy Islands on Ag(111)

AU - Morgenstern, Karina

AU - Rosenfeld, G.

AU - Poelsema, Bene

AU - Comsa, George

PY - 1995

Y1 - 1995

N2 - The motion of monatomic deep vacancy islands on crystal surfaces is studied both theoretically and experimentally. We develop a new theoretical model which allows us to deduce the microscopic mechanism of mass transport from measuring the diffusion coefficients of the vacancy islands as a function of their size. This model is applied to experimental results obtained with a fast scanning tunneling microscope on Ag(111) at room temperature. The observed scaling is consistent with a mechanism where the microscopic mass transport is dominated by diffusion of adatoms across the vacancy island rather than along the island boundary.

AB - The motion of monatomic deep vacancy islands on crystal surfaces is studied both theoretically and experimentally. We develop a new theoretical model which allows us to deduce the microscopic mechanism of mass transport from measuring the diffusion coefficients of the vacancy islands as a function of their size. This model is applied to experimental results obtained with a fast scanning tunneling microscope on Ag(111) at room temperature. The observed scaling is consistent with a mechanism where the microscopic mass transport is dominated by diffusion of adatoms across the vacancy island rather than along the island boundary.

KW - METIS-128895

KW - IR-61220

U2 - 10.1103/PhysRevLett.74.2058

DO - 10.1103/PhysRevLett.74.2058

M3 - Article

VL - 74

SP - 2058

EP - 2061

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 74

ER -