Optical Reflectivity of the Si(111)-(2×1
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Rohlfing, M. ;Louie, S. G.
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Article
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1999
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John Wiley and Sons
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English
⚖ 164 KB
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We calculate the optical reflectivity of the Si( 111)-(2Â1) surface from first principles. To this end, we first calculate the quasiparticle band structure of the surface within the GW approximation for the electronic self energy. The band structure exhibits two surface bands inside the fundamental