Atom dynamics on Pt, Ir and Cu surfaces: An experimental study using various techniques

Tien T. Tsong, Chonglin Chen, Tsu-Yi Fu, Yi Ren Tzeng

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

Some metallic adsorbed atoms on fcc metal surfaces can exchange with substrate atoms well below the room temperature. For homogeneous systems, the atomic exchange is a mechanism for self-diffusion. For heterogeneous systems, it is a mechanism for point alloy formation of only the top surface layer but it will also induce self-diffusion. We present experimental evidence found from FIM, HREELS and LEIS studies. These experiments and their relations to available theories and molecular dynamic simulations of this phenomenon are also mentioned. In addition, we present evidence for the ascending motion of step edge atoms to the upper terrace for the Ir (111) surface, and the result of a measurement of the potential barrier height of the ascending motion and the dissociation energy of step edge atoms to the lower terrace.

Original languageEnglish
Pages (from-to)1259-1269
Number of pages11
JournalSurface Review and Letters
Volume3
Issue number2
DOIs
Publication statusPublished - 1996 Jan 1

Fingerprint

Atoms
atoms
adatoms
metal surfaces
surface layers
dissociation
molecular dynamics
Molecular dynamics
Ion exchange
Metals
room temperature
Computer simulation
Substrates
simulation
energy
Experiments
Temperature

ASJC Scopus subject areas

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

Cite this

Atom dynamics on Pt, Ir and Cu surfaces : An experimental study using various techniques. / Tsong, Tien T.; Chen, Chonglin; Fu, Tsu-Yi; Tzeng, Yi Ren.

In: Surface Review and Letters, Vol. 3, No. 2, 01.01.1996, p. 1259-1269.

Research output: Contribution to journalReview article

Tsong, Tien T. ; Chen, Chonglin ; Fu, Tsu-Yi ; Tzeng, Yi Ren. / Atom dynamics on Pt, Ir and Cu surfaces : An experimental study using various techniques. In: Surface Review and Letters. 1996 ; Vol. 3, No. 2. pp. 1259-1269.
@article{2b2fb7deb74f4a10951a04078dcb3c8e,
title = "Atom dynamics on Pt, Ir and Cu surfaces: An experimental study using various techniques",
abstract = "Some metallic adsorbed atoms on fcc metal surfaces can exchange with substrate atoms well below the room temperature. For homogeneous systems, the atomic exchange is a mechanism for self-diffusion. For heterogeneous systems, it is a mechanism for point alloy formation of only the top surface layer but it will also induce self-diffusion. We present experimental evidence found from FIM, HREELS and LEIS studies. These experiments and their relations to available theories and molecular dynamic simulations of this phenomenon are also mentioned. In addition, we present evidence for the ascending motion of step edge atoms to the upper terrace for the Ir (111) surface, and the result of a measurement of the potential barrier height of the ascending motion and the dissociation energy of step edge atoms to the lower terrace.",
author = "Tsong, {Tien T.} and Chonglin Chen and Tsu-Yi Fu and Tzeng, {Yi Ren}",
year = "1996",
month = "1",
day = "1",
doi = "10.1142/S0218625X96002278",
language = "English",
volume = "3",
pages = "1259--1269",
journal = "Surface Review and Letters",
issn = "0218-625X",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "2",

}

TY - JOUR

T1 - Atom dynamics on Pt, Ir and Cu surfaces

T2 - An experimental study using various techniques

AU - Tsong, Tien T.

AU - Chen, Chonglin

AU - Fu, Tsu-Yi

AU - Tzeng, Yi Ren

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Some metallic adsorbed atoms on fcc metal surfaces can exchange with substrate atoms well below the room temperature. For homogeneous systems, the atomic exchange is a mechanism for self-diffusion. For heterogeneous systems, it is a mechanism for point alloy formation of only the top surface layer but it will also induce self-diffusion. We present experimental evidence found from FIM, HREELS and LEIS studies. These experiments and their relations to available theories and molecular dynamic simulations of this phenomenon are also mentioned. In addition, we present evidence for the ascending motion of step edge atoms to the upper terrace for the Ir (111) surface, and the result of a measurement of the potential barrier height of the ascending motion and the dissociation energy of step edge atoms to the lower terrace.

AB - Some metallic adsorbed atoms on fcc metal surfaces can exchange with substrate atoms well below the room temperature. For homogeneous systems, the atomic exchange is a mechanism for self-diffusion. For heterogeneous systems, it is a mechanism for point alloy formation of only the top surface layer but it will also induce self-diffusion. We present experimental evidence found from FIM, HREELS and LEIS studies. These experiments and their relations to available theories and molecular dynamic simulations of this phenomenon are also mentioned. In addition, we present evidence for the ascending motion of step edge atoms to the upper terrace for the Ir (111) surface, and the result of a measurement of the potential barrier height of the ascending motion and the dissociation energy of step edge atoms to the lower terrace.

UR - http://www.scopus.com/inward/record.url?scp=0038123551&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038123551&partnerID=8YFLogxK

U2 - 10.1142/S0218625X96002278

DO - 10.1142/S0218625X96002278

M3 - Review article

AN - SCOPUS:0038123551

VL - 3

SP - 1259

EP - 1269

JO - Surface Review and Letters

JF - Surface Review and Letters

SN - 0218-625X

IS - 2

ER -