Reflectance anisotropy spectroscopy of Si(111)-(3×1)Li and Ag surfaces
Citation:
Jorgji, S., McGilp, J.F., Patterson, C.H., Reflectance anisotropy spectroscopy of Si(111)-(3×1)Li and Ag surfaces, Physical Review B - Condensed Matter and Materials Physics, 87, 19, 2013, art. no. 195304Download Item:
PhysRevB.87.195304.pdf (Published (publisher's copy) - Peer Reviewed) 2.158Mb
Abstract:
The Si(111)-(3?1)Li and Ag surface structures consist of Si honeycomb chains separated by channels occupied by Li or Ag atoms. The dimerization of neighboring Ag atoms results in a larger c(12?2)Ag superstructure. We report calculations of the electronic surface states, dielectric function, and reflectance anisotropy spectrum of these surfaces using hybrid density functional theory (DFT) methods. The positions of surface states and the reflectance anisotropy spectrum calculated using DFT are in very good agreement with experimental results, where they have been reported. The surface states which contribute to the reflectance anisotropy below the band gap are identified for each orientation of the incident electromagnetic field.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
11/RFP/PHY/3047
Higher Education Authority (HEA)
Author's Homepage:
http://people.tcd.ie/jmcgilphttp://people.tcd.ie/cpttrson
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PUBLISHED
Author: PATTERSON, CHARLES; MCGILP, JOHN
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Journal ArticleCollections:
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Physical Review B - Condensed Matter and Materials Physics87
19
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dimerizationDOI:
http://dx.doi.org/10.1103/PhysRevB.87.195304Licences: