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cond-mat2000★ 14 cited
Two-magnon Raman scattering in spin-ladder geometries and the ratio of rung and leg exchange constants
P. J. Freitas, R. R. P. Singh
We discuss ways in which the ratio of exchange constants along the rungs and legs of a spin-ladder material influences the two-magnon Raman scattering spectra and hence can be dete…
cond-mat2000★ 19 cited
Two-magnon Raman scattering in insulating cuprates: Modifications of the effective Raman operator
P. J. Freitas, R. R. P. Singh
Calculations of Raman scattering intensities in spin 1/2 square-lattice Heisenberg model, using the Fleury-Loudon-Elliott theory, have so far been unable to describe the broad line…