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Titolo:
STM observation of the 2 x 3 and c(2 x 6) structures on Ba/Si(100)
Autore:
Ojima, K; Yoshimura, M; Ueda, K;
Indirizzi:
Toyota Technol Inst, Grad Sch Engn, Tempa Ku, Nagoya, Aichi 4688511, JapanToyota Technol Inst Nagoya Aichi Japan 4688511 goya, Aichi 4688511, Japan
Titolo Testata:
SURFACE SCIENCE
fascicolo: 1-2, volume: 491, anno: 2001,
pagine: 169 - 174
SICI:
0039-6028(20010920)491:1-2<169:SOOT2X>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SI(001)2 X-1 SURFACE; SI(100) SURFACE; BA ADSORPTION; ROOM-TEMPERATURE; INTERFACE; DEPOSITION; OXIDATION; SILICIDE; PHASE; XPS;
Keywords:
scanning tunneling microscopy; surface relaxation and reconstruction; surface structure, morphology, roughness, and; topography; silicon; alkaline earth metals; low index single crystal surfaces;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshimura, M Toyota Technol Inst, Grad Sch Engn, Tempa Ku, 2-12-1 Hisakata, Nagoya, Aichi 4688511, Japan Toyota Technol Inst 2-12-1 Hisakata Nagoya Aichi Japan 4688511
Citazione:
K. Ojima et al., "STM observation of the 2 x 3 and c(2 x 6) structures on Ba/Si(100)", SURF SCI, 491(1-2), 2001, pp. 169-174

Abstract

Barium induced 2 x 3 and c(2 x 6) structures on Si(l 0 0), which appear atthe Ba coverage below 1/3 ML, have been studied by scanning tunneling microscopy (STM). It is revealed that the 2 x 3 structure has only one adsorption phase, being independent of Ba coverage. Based on high resolution filled-state STM images where four protrusions are resolved in a unit cell, a model of 2 x 3 structure is proposed where the building unit consists of a Ba dimer and two Si dimers. It is also found that the c(2 x 6) structure always coexists with the 2 x 3 structure and has the same building block. The c(2 x 6) is realized when adjacent rows of building blocks are out of phase. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 01/12/20 alle ore 07:47:29