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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Persson, Clas | - |
dc.contributor.author | Silva, Antonio Ferreira da | - |
dc.creator | Persson, Clas | - |
dc.creator | Silva, Antonio Ferreira da | - |
dc.date.accessioned | 2012-07-20T14:58:56Z | - |
dc.date.available | 2012-07-20T14:58:56Z | - |
dc.date.issued | 2005 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/6479 | - |
dc.description | p. 1-4 | pt_BR |
dc.description.abstract | Thin TiO2 films are prepared by dc magnetron sputtering as well as by the sol-gel technique, and the optical band edge absorption asvd is obtained from transmission spectroscopy. The electronic structure and optical properties are studied employing a first-principle linearized augmented plane-wave method within the local density approximation sLDAd, improved by an on-site Coulomb self-interaction potential sLDA+USICd. We show that the correction potential, the polaronic screening, and the spin-orbit interaction are crucial for determining the TiO2 effective electron and hole masses. The dielectric function «svd=«1svd+i«2svd and the high-frequency constant «s0!v!Eg /"d show pronounced anisotropy. The electron-optical phonon interaction affects «sv<0d strongly. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | American Institute of Physics | pt_BR |
dc.source | http://dx.doi.org/10.1063/1.1940739 | pt_BR |
dc.title | Strong polaronic effects on rutile TiO2 electronic band edges | pt_BR |
dc.title.alternative | Applied Physics Letters | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 86, n. 23 | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (FIS) |
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