Step fluctuation spectroscopy of Au(1 1 1) by LEEM

M. Ondrejcek; M. Rajappan; W. Swiech; C. P. Flynn

doi:10.1016/j.susc.2004.10.024

Step fluctuation spectroscopy of Au(1 1 1) by LEEM

M. Ondrejcek, M. Rajappan, W. Swiech, C. P. Flynn

National Center for Supercomputing Applications (NCSA)

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

Abstract

We report a study of the fluctuations exhibited by step edges on clean Au(1 1 1), using low energy electron microscopy. The research yields values for the surface mass diffusion coefficient D _s and the orientation-dependent step stiffness β̃(θ) through the temperature range 900-1300 K. Uniform, threefold and sixfold components of the measured β̃(θ) on the 3 m surface have similar magnitudes and are only weakly temperature dependent. The measured D _s are similar to values reported earlier for Pt(1 1 1) and Pd(1 1 1) at homologous temperatures, determined relative to the melting temperatures.

Original language	English (US)
Pages (from-to)	111-122
Number of pages	12
Journal	Surface Science
Volume	574
Issue number	2-3
DOIs	https://doi.org/10.1016/j.susc.2004.10.024
State	Published - Jan 10 2005

Keywords

Gold
Low-energy electron microscopy (LEEM)
Surface diffusion

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Online availability

10.1016/j.susc.2004.10.024

Library availability

Discover UIUC Full Text

Cite this

@article{116593d0c75145109cb541e7376d1e13,

title = "Step fluctuation spectroscopy of Au(1 1 1) by LEEM",

abstract = "We report a study of the fluctuations exhibited by step edges on clean Au(1 1 1), using low energy electron microscopy. The research yields values for the surface mass diffusion coefficient D s and the orientation-dependent step stiffness {\~β}(θ) through the temperature range 900-1300 K. Uniform, threefold and sixfold components of the measured {\~β}(θ) on the 3 m surface have similar magnitudes and are only weakly temperature dependent. The measured D s are similar to values reported earlier for Pt(1 1 1) and Pd(1 1 1) at homologous temperatures, determined relative to the melting temperatures.",

keywords = "Gold, Low-energy electron microscopy (LEEM), Surface diffusion",

author = "M. Ondrejcek and M. Rajappan and W. Swiech and Flynn, {C. P.}",

note = "Funding Information: This research is supported in part by the Department of Energy, through the University of Illinois MRL grants DEFG02-02ER46011 and DEFG02-91-ER45439, and through the Center for Microanalysis of Materials, in which the LEEM is maintained and operated. ",

year = "2005",

month = jan,

day = "10",

doi = "10.1016/j.susc.2004.10.024",

language = "English (US)",

volume = "574",

pages = "111--122",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - Step fluctuation spectroscopy of Au(1 1 1) by LEEM

AU - Ondrejcek, M.

AU - Rajappan, M.

AU - Swiech, W.

AU - Flynn, C. P.

N1 - Funding Information: This research is supported in part by the Department of Energy, through the University of Illinois MRL grants DEFG02-02ER46011 and DEFG02-91-ER45439, and through the Center for Microanalysis of Materials, in which the LEEM is maintained and operated.

PY - 2005/1/10

Y1 - 2005/1/10

N2 - We report a study of the fluctuations exhibited by step edges on clean Au(1 1 1), using low energy electron microscopy. The research yields values for the surface mass diffusion coefficient D s and the orientation-dependent step stiffness β̃(θ) through the temperature range 900-1300 K. Uniform, threefold and sixfold components of the measured β̃(θ) on the 3 m surface have similar magnitudes and are only weakly temperature dependent. The measured D s are similar to values reported earlier for Pt(1 1 1) and Pd(1 1 1) at homologous temperatures, determined relative to the melting temperatures.

AB - We report a study of the fluctuations exhibited by step edges on clean Au(1 1 1), using low energy electron microscopy. The research yields values for the surface mass diffusion coefficient D s and the orientation-dependent step stiffness β̃(θ) through the temperature range 900-1300 K. Uniform, threefold and sixfold components of the measured β̃(θ) on the 3 m surface have similar magnitudes and are only weakly temperature dependent. The measured D s are similar to values reported earlier for Pt(1 1 1) and Pd(1 1 1) at homologous temperatures, determined relative to the melting temperatures.

KW - Gold

KW - Low-energy electron microscopy (LEEM)

KW - Surface diffusion

UR - http://www.scopus.com/inward/record.url?scp=11444260262&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11444260262&partnerID=8YFLogxK

U2 - 10.1016/j.susc.2004.10.024

DO - 10.1016/j.susc.2004.10.024

M3 - Article

AN - SCOPUS:11444260262

SN - 0039-6028

VL - 574

SP - 111

EP - 122

JO - Surface Science

JF - Surface Science

IS - 2-3

ER -

Step fluctuation spectroscopy of Au(1 1 1) by LEEM

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this