We study theoretically the resonant inelastic x-ray scattering in quasi-one-dimensional insulating copper oxides, where the incident photon energy is tuned to the Cu1s-4p absorption energy. Our attention is focused particularly on the strong momentum-transfer dependence of the spectral shape observed in recent experiments. We describe the antiferromagnetic ground state within the Hartree-Fock theory, and consider charge excitations from the ground state within the random phase approximation. By taking account of the electron correlation effects perturbatively, we obtain detailed momentum-transfer dependence of the spectra in a semiquantitative agreement with the experiments.
@article{arxiv.cond-mat/0402150,
title = {Theoretical Study on Resonant Inelastic X-Ray Scattering in Quasi-One-Dimensional Cuprates},
author = {Takuji Nomura and Jun-ichi Igarashi},
journal= {arXiv preprint arXiv:cond-mat/0402150},
year = {2009}
}
Comments
4 pages, 5 figures, submitted to J. Phys. Soc. Jpn