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Fujihara, Masayoshi*; Morita, Katsuhiro*; Mole, R.*; Mitsuda, Setsuo*; Toyama, Takami*; Yano, Shinichiro*; Yu, D.*; Sota, Shigetoshi*; Kuwai, Tomohiko*; Koda, Akihiro*; et al.
Nature Communications (Internet), 11, p.3429_1 - 3429_7, 2020/07
Times Cited Count：47 Percentile：92.12(Multidisciplinary Sciences)
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Toyama, Takami; Mori, Michiyasu; Sota, Shigetoshi*
Physical Review B, 97(23), p.235137_1 - 235137_7, 2018/06
Times Cited Count：12 Percentile：48.46(Materials Science, Multidisciplinary)
edgeIshii, Kenji*; Toyama, Takami*; Asano, Shun*; Sato, Kentaro*; Fujita, Masaki*; Wakimoto, Shuichi; Tsutsui, Kenji*; Sota, Shigetoshi*; Miyawaki, Jun*; Niwa, Hideharu*; et al.
Physical Review B, 96(11), p.115148_1 - 115148_8, 2017/09
Times Cited Count：32 Percentile：78.06(Materials Science, Multidisciplinary)Toyama, Takami*; Tsutsui, Kenji; Mori, Michiyasu; Sota, Shigetoshi*; Yunoki, Seiji*
Physical Review B, 92(1), p.014515_1 - 014515_8, 2015/07
Times Cited Count：14 Percentile：50.55(Materials Science, Multidisciplinary)Resonant inelastic X-ray scattering (RIXS) tuned for Cu 
edge is a possible tool to detect charge excitations in cuprate superconductors. We theoretically investigate the possibility for observing a collective charge excitation by the RIXS. The RIXS process via the intermediate state inevitably makes the spectral weight of charge excitation stronger in electron doping than in hole doping. Electron-hole asymmetry also appears in dynamical charge structure factor, showing a new enhanced small-momentum low-energy mode in electron doping. These facts indicate a possibility of detecting the new charge mode by RIXS in electron-doped systems.
Matsueda, Hiroaki*; Sota, Shigetoshi*; Toyama, Takami*; Maekawa, Sadamichi
Journal of the Physical Society of Japan, 81(1), p.013701_1 - 013701_4, 2012/01
Times Cited Count：40 Percentile：82.71(Physics, Multidisciplinary)
