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- W2788994782 abstract "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 determined from it. We show that within the Fleury-Loudon-Elliott approach, the Raman line-shape does not change with polarization geometries. This lineshape is well known to be difficult to calculate accurately from theory. However, the Raman scattering intensities do vary with polarization geometries, which are easy to calculate. With some assumptions about the Raman scattering Hamiltonian, the latter can be used to estimate the ratio of exchange constants. We apply these results to Sugai's recent measurements of Raman scattering from spin-ladder materials such as La$_6$Ca$_8$Cu$_{24}$O$_{41}$ and Sr$_{14}$Cu$_{24}$O$_{41}$." @default.
- W2788994782 created "2018-03-06" @default.
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- W2788994782 date "2000-04-27" @default.
- W2788994782 modified "2023-09-27" @default.
- W2788994782 title "Exact relations between ratios of exchange constants and two-magnon Raman scattering intensities in spin-ladder and other geometries" @default.
- W2788994782 hasPublicationYear "2000" @default.
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