Influence of Sn on the optical anisotropy of single-domain Si(001)

Astropekakis, A; Power, JR; Fleischer, K; Esser, N; Galata, S; Papadimitriou, D; Richter, W

dc.contributor.author	Astropekakis, A	en
dc.contributor.author	Power, JR	en
dc.contributor.author	Fleischer, K	en
dc.contributor.author	Esser, N	en
dc.contributor.author	Galata, S	en
dc.contributor.author	Papadimitriou, D	en
dc.contributor.author	Richter, W	en
dc.date.accessioned	2014-03-01T01:16:39Z
dc.date.available	2014-03-01T01:16:39Z
dc.date.issued	2001	en
dc.identifier.issn	0163-1829	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14144
dc.subject	Single Domain	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	REFLECTANCE DIFFERENCE SPECTROSCOPY	en
dc.subject.other	MOLECULAR-BEAM EPITAXY	en
dc.subject.other	VICINAL SI(001)	en
dc.subject.other	SI(100) SURFACE	en
dc.subject.other	GROWTH	en
dc.subject.other	SI(111)	en
dc.subject.other	SYSTEM	en
dc.subject.other	RECONSTRUCTION	en
dc.subject.other	ORIENTATION	en
dc.subject.other	MORPHOLOGY	en
dc.title	Influence of Sn on the optical anisotropy of single-domain Si(001)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.63.085317	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.63.085317	en
heal.identifier.secondary	085317	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	We apply reflectance anisotropy spectroscopy (RAS) and low-energy electron diffraction (LEED) to the study of Sn deposited on a single-domain vicinal Si(001) sample. Large variations in RAS are recorded when up to 5 monolayers (ML) of Sn is deposited on the Si substrate at room temperature. We observe (2 x 2) and (1 x 1) LEED patterns for the 0.5-ML and 1.0-ML Sn covered surfaces, respectively. The (1 x 1) LEED pattern exists beyond this coverage and up to 5.0-ML deposition. Even though a(1 x 1) LEED pattern is observed upon deposition of 1.5 ML. surprisingly, a significant optical anisotropy is observed. After annealing to 570 degreesC for 2 min, we observe a progression of LEED pattern changes from c(4 x 4)-->(6 x 2)-->(8 x 4) --> (5 x 1) with increased Sn coverage up to 1.5 ML. Similar RAS line shapes are obtained for all reconstructions produced through annealing with the exception of the (5 x 1). For the (5 x 1) phase, a significant anisotropy appears in the region of 1.8 eV. Similarities in the RAS line, shape for both the (5 x 1) phase and that obtained after deposition of 1.5 ML of Sn at room temperature may indicate a RAS sensitivity to Sn dimer orientation within the uppermost layer.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	PHYSICAL REVIEW B	en
dc.identifier.doi	10.1103/PhysRevB.63.085317	en
dc.identifier.isi	ISI:000167203500060	en
dc.identifier.volume	6308	en
dc.identifier.issue	8	en