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• W2329935421 abstract "We formulate a theoretical approach of surface second-harmonic generation from semiconductor surfaces based on the length gauge and the electron density operator. Within the independent particle approximation, the nonlinear second-order surface susceptibility tensor ${ensuremath{chi}}^{mathrm{a}mathrm{b}mathrm{c}}(ensuremath{-}2ensuremath{omega};ensuremath{omega},ensuremath{omega})$ is calculated, including in one unique formulation (i) the scissors correction, needed to have the correct value of the energy band gap, (ii) the contribution of the nonlocal part of the pseudopotentials, routinely used in ab initio band-structure calculations, and (iii) the derivation for the inclusion of the cut function, used to extract the surface response. The first two contributions are described by spatially nonlocal quantum-mechanical operators and are fully taken into account in the present formulation. As a test case of the approach, we calculate ${ensuremath{chi}}^{xxx}(ensuremath{-}2ensuremath{omega};ensuremath{omega},ensuremath{omega})$ for the clean $mathrm{Si}(001)2ifmmodetimeselsetexttimesfi{}1$ reconstructed surface. The effects of the scissors correction and of the nonlocal part of the pseudopotentials are discussed in surface nonlinear optics. The scissors correction shifts the spectrum to higher energies though the shifting is not rigid and mixes the $1ensuremath{omega}$ and $2ensuremath{omega}$ resonances, and has a strong influence in the line shape. The effects of the nonlocal part of the pseudopotentials keeps the same line shape of $|{ensuremath{chi}}_{2ifmmodetimeselsetexttimesfi{}1}^{xxx}(ensuremath{-}2ensuremath{omega};ensuremath{omega},ensuremath{omega})|$, but reduces its value by 15%--20%. Therefore the inclusion of the three aforementioned contributions is very important and makes our scheme unprecedented and opens the possibility to study surface second-harmonic generation with more versatility and providing more accurate results." @default.
• W2329935421 created "2016-06-24" @default.
• W2329935421 creator A5028190524 @default.
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• W2329935421 creator A5082594793 @default.
• W2329935421 date "2015-02-05" @default.
• W2329935421 modified "2023-10-18" @default.
• W2329935421 title "Theory of surface second-harmonic generation for semiconductors including effects of nonlocal operators" @default.
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• W2329935421 cites W1965019667 @default.
• W2329935421 cites W1972009988 @default.
• W2329935421 cites W1983994848 @default.
• W2329935421 cites W1986408832 @default.
• W2329935421 cites W1996243711 @default.
• W2329935421 cites W2007064220 @default.
• W2329935421 cites W2010456230 @default.
• W2329935421 cites W2011366615 @default.
• W2329935421 cites W2011947138 @default.
• W2329935421 cites W2013629717 @default.
• W2329935421 cites W2014094922 @default.
• W2329935421 cites W2014659569 @default.
• W2329935421 cites W2016803455 @default.
• W2329935421 cites W2020376722 @default.
• W2329935421 cites W2021870340 @default.
• W2329935421 cites W2028082431 @default.
• W2329935421 cites W2031487813 @default.
• W2329935421 cites W2035223648 @default.
• W2329935421 cites W2038532166 @default.
• W2329935421 cites W2041026392 @default.
• W2329935421 cites W2042062184 @default.
• W2329935421 cites W2045596260 @default.
• W2329935421 cites W2046209358 @default.
• W2329935421 cites W2048026841 @default.
• W2329935421 cites W2050506342 @default.
• W2329935421 cites W2052065930 @default.
• W2329935421 cites W2053383680 @default.
• W2329935421 cites W2053499780 @default.
• W2329935421 cites W2053977595 @default.
• W2329935421 cites W2054073141 @default.
• W2329935421 cites W2055114771 @default.
• W2329935421 cites W2055222955 @default.
• W2329935421 cites W2055465627 @default.
• W2329935421 cites W2055640329 @default.
• W2329935421 cites W2058037898 @default.
• W2329935421 cites W2059510387 @default.
• W2329935421 cites W2060511351 @default.
• W2329935421 cites W2060827848 @default.
• W2329935421 cites W2062227389 @default.
• W2329935421 cites W2063109985 @default.
• W2329935421 cites W2066200960 @default.
• W2329935421 cites W2066263668 @default.
• W2329935421 cites W2066440892 @default.
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• W2329935421 cites W2075662869 @default.
• W2329935421 cites W2077796015 @default.
• W2329935421 cites W2078596502 @default.
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• W2329935421 doi "https://doi.org/10.1103/physrevb.91.075302" @default.
• W2329935421 hasPublicationYear "2015" @default.
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