Predictions for Neutron Scattering and Photoemission Experiments on CuGeO_3

Details Predictions for Neutron Scattering and Photoemission Experiments on CuGeO_3 Predictions for Neutron Scattering and Photoemission Experiments on CuGeO_3

1995-08-14

arxiv.org/abs/cond-mat/9508048v1

Physics

Condensed Matter

4 pages, Z-compressed postscript file

Scientific paper

10.1103/PhysRevB.52.R14396

Applying numerical techniques to a model recently proposed for the one dimensional spin-Peierls compound CuGeO_3, we calculate dynamical properties that can be directly compared with inelastic neutron scattering data and angle-resolved photoemission experiments. The momentum and energy dependence of the dynamical structure factor S(q,omega) are discussed, as well as the static structure factor S(q). The spectral function A(q,omega) calculated from the one particle Green's function at half-filling is shown at several values of the hole hopping amplitude t. The results have some unique features characteristic of one dimensional systems including small weight near the Fermi energy. The presence of ``shadow bands'' induced by short distance antiferromagnetic correlations is predicted to appear in ARPES experiments for CuGeO_3 and also for Sr_2CuO_3.

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