Mass Dependence of the Sputtering Yield —Boundary Effect

Masatoshi Imada*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A simple model is used to study the dependence of the sputtering yield on the incident atomic number (Z1). Scatterings between incident and target atoms are classified into two types, that is, large and small angle scatterings. Large angle scatterings are represented by random walks with a certain energy loss and small angle scatterings by another certain energy loss. The range distribution derived from this model is compared with other rigorous calculations. Sigmund's theory considerably overestimates the sputtering yield in the region where M2≫M1, M1 and M2 the mass of incident and target atoms respectively. Our simple model explains this as a surface boundary effect, i.e., as an effect due to escaping of energetic atoms from the surface.

Original languageEnglish
Pages (from-to)1957-1964
Number of pages8
Journaljournal of the physical society of japan
Issue number6
Publication statusPublished - 1978 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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