Vacancy-mediated diffusion of Co atoms embedded in Cu(001)

Raoul van Gastel; R. van Moere; Henricus J.W. Zandvliet; Bene Poelsema

doi:10.1016/j.sucs.2011.07.011

Vacancy-mediated diffusion of Co atoms embedded in Cu(001)

Raoul van Gastel, R. van Moere, Henricus J.W. Zandvliet, Bene Poelsema

Research output: Contribution to journal › Article › Academic › peer-review

18 Citations (Scopus)

Abstract

The diffusion of Co atoms in the Cu(001) surface has been studied using Scanning Tunneling Microscopy (STM). Like other impurities in the Cu(001) surface, the diffusion of Co is mediated by single surface vacancies. STM images reveal that diffusion of the embedded atoms takes place through multi-atom jumps separated by long time intervals, which is characteristic for this type of diffusion. The jump length and frequency are measured to establish the nature of the interaction between surface vacancies and the embedded Co atoms and to extract the relevant formation and diffusion energies.

Original language	English
Pages (from-to)	1956-1961
Number of pages	6
Journal	Surface science
Volume	605
Issue number	23-24
DOIs	https://doi.org/10.1016/j.sucs.2011.07.011 https://doi.org/10.1016/j.susc.2011.07.011
Publication status	Published - 2011

Keywords

Cobalt
Morphology
Diffusion
Roughness and topography
IR-80437
Scanning tunneling microscopy (STM)
Surface structure
METIS-280364
Copper

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title = "Vacancy-mediated diffusion of Co atoms embedded in Cu(001)",

abstract = "The diffusion of Co atoms in the Cu(001) surface has been studied using Scanning Tunneling Microscopy (STM). Like other impurities in the Cu(001) surface, the diffusion of Co is mediated by single surface vacancies. STM images reveal that diffusion of the embedded atoms takes place through multi-atom jumps separated by long time intervals, which is characteristic for this type of diffusion. The jump length and frequency are measured to establish the nature of the interaction between surface vacancies and the embedded Co atoms and to extract the relevant formation and diffusion energies.",

keywords = "Cobalt, Morphology, Diffusion, Roughness and topography, IR-80437, Scanning tunneling microscopy (STM), Surface structure, METIS-280364, Copper",

author = "{van Gastel}, Raoul and {van Moere}, R. and Zandvliet, {Henricus J.W.} and Bene Poelsema",

year = "2011",

doi = "10.1016/j.sucs.2011.07.011",

language = "English",

volume = "605",

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journal = "Surface science",

issn = "0039-6028",

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T1 - Vacancy-mediated diffusion of Co atoms embedded in Cu(001)

AU - van Gastel, Raoul

AU - van Moere, R.

AU - Zandvliet, Henricus J.W.

AU - Poelsema, Bene

PY - 2011

Y1 - 2011

N2 - The diffusion of Co atoms in the Cu(001) surface has been studied using Scanning Tunneling Microscopy (STM). Like other impurities in the Cu(001) surface, the diffusion of Co is mediated by single surface vacancies. STM images reveal that diffusion of the embedded atoms takes place through multi-atom jumps separated by long time intervals, which is characteristic for this type of diffusion. The jump length and frequency are measured to establish the nature of the interaction between surface vacancies and the embedded Co atoms and to extract the relevant formation and diffusion energies.

AB - The diffusion of Co atoms in the Cu(001) surface has been studied using Scanning Tunneling Microscopy (STM). Like other impurities in the Cu(001) surface, the diffusion of Co is mediated by single surface vacancies. STM images reveal that diffusion of the embedded atoms takes place through multi-atom jumps separated by long time intervals, which is characteristic for this type of diffusion. The jump length and frequency are measured to establish the nature of the interaction between surface vacancies and the embedded Co atoms and to extract the relevant formation and diffusion energies.

KW - Cobalt

KW - Morphology

KW - Diffusion

KW - Roughness and topography

KW - IR-80437

KW - Scanning tunneling microscopy (STM)

KW - Surface structure

KW - METIS-280364

KW - Copper

U2 - 10.1016/j.sucs.2011.07.011

DO - 10.1016/j.sucs.2011.07.011

M3 - Article

VL - 605

SP - 1956

EP - 1961

JO - Surface science

JF - Surface science

SN - 0039-6028

IS - 23-24

ER -