New reconstructions of platinum silicide surface

Andrzej Wawro, Shozo Suto, Atsuo Kasuya

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Scanning tunneling microscopy (STM) studies of platinum suicide growth have been carried out after 5 and 10 monolayer (ML) of Pt deposition on a Si(111)7 × 7 surface and subsequent annealing at various temperatures up to 1100°C. Above 500°C, the islands of platinum suicide are terminated with different, new reconstructions depending on the amount of deposited material. Models for observed reconstructions are proposed, and the growth orientations and composition of formed suicides are determined. Between the islands, structural domains with a √3 × √ pattern expanding at the expense of platinum suicide crystallites with increasing temperature separated by numerous boundaries are found. From the structural features of domain borders it has been deduced that reconstruction atoms occupy only one type of site.

Original languageEnglish
Pages (from-to)2166-2169
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number3 B
DOIs
Publication statusPublished - 2006 Mar 27

Keywords

  • Platinum suicide
  • Scanning tunneling microscopy
  • Surface reconstruction

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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