CrossRef 2000 6 sitasi

Ionic-to-metallic layer transition in Cs adsorption on Si(111)-(7×7): Charge-state selective detection of the adsorbates by Cs+ reactive ion scattering

Seung-Jin Han Seong Chan Park Jong-Gyu Lee Heon Kang

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Abstrak

We examined the adsorption of Cs on a Si(111)-(7×7) surface by reactive ion scattering (RIS) of hyperthermal Cs+ beams. The RIS from a Cs-adsorbed surface gives rise to Cs2+, representing pickup of a surface Cs by a Cs+ projectile. The Cs2+ intensity is proportional to the surface coverage of Cs at a high substrate temperature (473 K), while it varies anomalously with the coverage at low temperatures (130–170 K). This observation indicates that RIS selectively detects metallic Cs on the surface, but discriminates ionic Cs. The transition from an ionic to metallic Cs adlayer is driven by the thermal diffusion of Cs and their clustering process.

Penulis (4)

Seung-Jin Han

Seong Chan Park

Jong-Gyu Lee

Heon Kang

Format Sitasi

APA MLA BibTeX

Han, S., Park, S.C., Lee, J., Kang, H. (2000). Ionic-to-metallic layer transition in Cs adsorption on Si(111)-(7×7): Charge-state selective detection of the adsorbates by Cs+ reactive ion scattering. https://doi.org/10.1063/1.481467

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Lihat di Sumber doi.org/10.1063/1.481467

Informasi Jurnal

Tahun Terbit: 2000
Bahasa: en
Total Sitasi: 6×
Sumber Database: CrossRef
DOI: 10.1063/1.481467
Akses: Terbatas