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Momentum dependent light scattering in insulating cuprates | | F. H. Vernay
; M. J. P. Gingras
; T. P. Devereaux
; | | Date: |
12 Jan 2007 | | Subject: | Strongly Correlated Electrons; Materials Science | | Abstract: | We investigate the problem of inelastic x-ray scattering in the spin$-{1/2}$ Heisenberg model on the square lattice. We first derive a momentum dependent scattering operator for the $A_{1g}$ and $B_{1g}$ polarization geometries. On the basis of a spin-wave analysis, including magnon-magnon interactions and exact-diagonalizations, we determine the qualitative shape of the spectra. We argue that our results may be relevant to help interpret inelastic x-ray scattering experiments in the antiferromagnetic phase of the cuprates. | | Source: | arXiv, cond-mat/0701289 | | Services: | Forum | Review | PDF | Favorites | |
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