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dc.contributor.authorSchattke, W.-
dc.contributor.authorKrasovskii, E. E.-
dc.contributor.authorDíez Muiño, Ricardo-
dc.contributor.authorEchenique, Pedro M.-
dc.date.accessioned2012-07-18T12:37:59Z-
dc.date.available2012-07-18T12:37:59Z-
dc.date.issued2008-
dc.identifierdoi: 10.1103/PhysRevB.78.155314-
dc.identifierissn: 1098-0121-
dc.identifiere-issn: 1550-235X-
dc.identifier.citationPhysical Review B 78(15): 155314 (2008)-
dc.identifier.urihttp://hdl.handle.net/10261/53535-
dc.description.abstractNonlinear effects in photoemission are shown to open an access to the band structure of unoccupied states in solids, totally different from hitherto used photoemission spectroscopy. Despite its second-order nature, strong resonant transitions occur, obeying exact selection rules of energy, crystal symmetry, and momentum. Ab initio calculations are performed to demonstrate that such structures are present in low-energy laser spectroscopy experimental measurements on Si. Similar resonances are predicted in ultraviolet angle-resolved photoemission spectra, as shown with a theoretical calculation on bulk Al. © 2008 The American Physical Society.-
dc.description.sponsorshipFinancial support by DFG under Contract No. FOR353 and the Spanish MEC (Grant No. FIS2007- 66711-C02-02) is acknowledged. -
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.rightsopenAccess-
dc.titleDirect resolution of unoccupied states in solids via two-photon photoemission-
dc.typeartículo-
dc.identifier.doi10.1103/PhysRevB.78.155314-
dc.date.updated2012-07-18T12:37:59Z-
dc.description.versionPeer Reviewed-
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