@article{f77f79d54b14422bbdcc6bcb3ce58c3e,
title = "Dispersion relation of charge gap excitations in quasi-1D Mott insulators studied by resonant X-ray scattering",
abstract = "Momentum dependence of charge excitations across the effective Mott gap in several quasi-low-dimensional model cuprates with different effective dimensionalities is studied using high resolution inelastic X-ray scattering by working near Copper k-edge resonance which allows us to extract the dispersion relations of the particle-hole pair excitations at the gap edge. Besides electron-electron correlation, momentum dependence of the gap-excitations is found to be strongly dependent on the effective dimensionality (or topology) of the 3dx2-y2 network.",
author = "D. Qian and Yinwan Li and Hasan, {M. Z.} and Casa, {D. M.} and T. Gog and Chuang, {Y. D.} and K. Tsutsui and T. Tohyama and S. Maekawa and H. Eisaki and S. Uchida",
note = "Funding Information: We gratefully acknowledge A. Bansil, P. Chaikin, D. Huse, E. Isaacs and N.P. Ong for stimulating discussions. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, DOE-BES C#W-31-109-Eng-38. MZH acknowledges partial support through NSF-MRSEC (DMR-0213706) and DOE DE-FG02-05ER46200 grant. Theoretical part was supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan, and CREST, and the numerical calculations were performed in the supercomputing facilities in ISSP, University of Tokyo, and IMR, Tohoku University.",
year = "2005",
month = dec,
doi = "10.1016/j.jpcs.2005.09.094",
language = "English (US)",
volume = "66",
pages = "2212--2215",
journal = "Journal of Physics and Chemistry of Solids",
issn = "0022-3697",
publisher = "Elsevier Limited",
number = "12",
}