DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dohyun | ko |
dc.contributor.author | Lee, Geunseop | ko |
dc.contributor.author | Kim, Sehun | ko |
dc.contributor.author | Hwang, Chanyong | ko |
dc.contributor.author | Koo, Ja-Yong | ko |
dc.contributor.author | Lee, Hangil | ko |
dc.date.accessioned | 2009-09-21T05:05:40Z | - |
dc.date.available | 2009-09-21T05:05:40Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-07 | - |
dc.identifier.citation | JOURNAL OF PHYSICS-CONDENSED MATTER, v.19, no.26 | - |
dc.identifier.issn | 0953-8984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/11358 | - |
dc.description.abstract | Using low- energy electron diffraction and scanning tunnelling microscopy, we studied the formation of Mg silicide and metallic Mg islands on a Si( 111)- 7 x 7 surface at room temperature as a function of Mg coverage. We found that the mechanism by which Mg islands grew on the Si( 111)- 7 x 7 surface, and the morphology of the islands that formed, depended on whether theMg deposition was performed in a stepwise or continuous manner. When Mg was deposited in a stepwise manner, with 1 h between deposition events, an amorphous Mg silicide overlayer formed on the Si( 111)- 7 x 7 surface during the initial stage of deposition ( up to 2.0 ML Mg coverage), as shown by the observation of delta 7 x 7 and 1 x 1 low- energy electron diffraction patterns. Upon further stepwise Mg deposition, round-shaped Mg islands grew on the amorphous Mg silicide layer, as shown by scanning tunnelling microscopy and the emergence of a 1 x 1 low- energy electron diffraction pattern. If, on the other hand, the Mg was deposited continuously in a single step, hexagonal Mg islands formed on the flat Mg silicide layers, and a ( 2/3 root 3 x 2/3 root 3) R30 degrees. and 1 x 1 mixed phase was observed. Moreover, using scanning tunnelling spectroscopy, we confirmed the semiconducting and metallic nature of the Mg silicide layer and hexagonal Mg islands on the Si( 111)- 7 x 7 surface depending on their Mg coverage, respectively. | - |
dc.description.sponsorship | This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (No. R01-2006-000-11247-0), and one of authors (Professor Sehun Kim) was also supported by the Brain Korea 21 project, the SRC program (Center for Nanotubes and Nanostructured Composites) of MOST/KOSEF, the National R&D Project for Nano Science and Technology, and Korea Research Foundation Grant No. KRF- 2005-070-C00063. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | INTERFACE FORMATION | - |
dc.subject | SURFACE | - |
dc.title | Room-temperature growth of Mg on Si(111): stepwise versus continuous deposition | - |
dc.type | Article | - |
dc.identifier.wosid | 000247400700004 | - |
dc.identifier.scopusid | 2-s2.0-34250742008 | - |
dc.type.rims | ART | - |
dc.citation.volume | 19 | - |
dc.citation.issue | 26 | - |
dc.citation.publicationname | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.identifier.doi | 10.1088/0953-8984/19/26/266004 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Sehun | - |
dc.contributor.nonIdAuthor | Lee, Dohyun | - |
dc.contributor.nonIdAuthor | Lee, Geunseop | - |
dc.contributor.nonIdAuthor | Hwang, Chanyong | - |
dc.contributor.nonIdAuthor | Koo, Ja-Yong | - |
dc.contributor.nonIdAuthor | Lee, Hangil | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | INTERFACE FORMATION | - |
dc.subject.keywordPlus | SURFACE | - |
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