Ion bombardment induced and thermal induced atomic exchanges: Ni, Fe, and Co Adatoms on the Ir(001) surface

Hao Tse Wu, Tsu Yi Fu, Tien T. Tsong

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Abstract

The temperature dependent behavior of Ni, Fe, and Co adatoms on the (1 × 1) and (5 × 1) Ir(001) surfaces have been studied using low energy helium ion scattering. Ni, Fe, and Co atoms were deposited on well cleaned and treated surfaces kept at 110 K. For the (1 × 1) surface, the ion bombardment induces a continuous exchange of adatoms with substrate atoms. In addition, rapid rises in the Ir signal intensities are found when the surface temperature is gradually raised to 200, 180, and 180 K which mark the onset of a thermally induced atomic exchange between Ni, Fe, and Co adatoms and substrate Ir atoms, respectively. For the (5 × 1) surface, no such exchanges are obvious.

Original languageEnglish
Pages (from-to)3251-3254
Number of pages4
JournalPhysical Review Letters
Volume73
Issue number24
DOIs
Publication statusPublished - 1994 Jan 1

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adatoms
bombardment
Hot Temperature
Ions
Helium
Temperature
ions
atoms
helium ions
ion scattering
surface temperature
temperature
energy

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  • Physics and Astronomy(all)

Cite this

Ion bombardment induced and thermal induced atomic exchanges : Ni, Fe, and Co Adatoms on the Ir(001) surface. / Wu, Hao Tse; Fu, Tsu Yi; Tsong, Tien T.

In: Physical Review Letters, Vol. 73, No. 24, 01.01.1994, p. 3251-3254.

Research output: Contribution to journalArticle

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