Chemical composition on the top of a surface determined with the evolution of surface states

Dah An Luh, Chih Hao Huang, Cheng Maw Cheng, Ku Ding Tsuei

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The epitaxial growth of Cu on Ag(111) was explored on monitoring the evolution of its surface states with angle-resolved photoemission spectroscopy; the chemical element on the top of Cu islands on Ag(111) with a (9 × 9) reconstruction was determined to be not Cu but Ag. Our result demonstrates a technique with which the chemical property associated with a surface state is explorable and an identification of the chemical element in the topmost layer of the surface becomes feasible.

Original languageEnglish
Article number181601
JournalApplied Physics Letters
Volume102
Issue number18
DOIs
StatePublished - 6 May 2013

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