We discuss the nature of the resonant enhancement factor which enters the K-edge RIXS cross-section within the framework of a three-band Hubbard model of the cuprates. The enhancement factor is shown to display peaks as a function of the incident photon energy related to the Van Hove singularities (including band edges) in the underlying Cu 4p density of states. (c) 2007 Elsevier B.V. All rights reserved.
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Japan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Mikazuki, Hyogo 6795148, JapanJapan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Mikazuki, Hyogo 6795148, Japan
Tsutsui, Kenji
Tohyama, Takami
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Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, JapanJapan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Mikazuki, Hyogo 6795148, Japan
Tohyama, Takami
Maekawa, Sadamichi
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Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
Japan Sci & Technol Agcy JST, CREST, Tokyo 1020075, JapanJapan Atom Energy Agcy, Synchrotron Radiat Res Ctr, Mikazuki, Hyogo 6795148, Japan
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KTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, RussiaKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Gel'mukhanov, Faris
Liu, Ji-Cai
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North China Elect Power Univ, Sch Math & Phys, Beijing 102206, Peoples R China
North China Elect Power Univ, Hebei Key Lab Phys & Energy Technol, Baoding 071000, Peoples R ChinaKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Liu, Ji-Cai
Krasnov, Pavel
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Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, RussiaKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Krasnov, Pavel
Ignatova, Nina
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Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, RussiaKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Ignatova, Nina
Rubensson, Jan-Erik
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Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, SwedenKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden
Rubensson, Jan-Erik
Kimberg, Victor
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KTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, SwedenKTH Royal Inst Technol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden