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Dynamic Structure Factor of the Two-Dimensional Shastry-Sutherland Model

Christian Knetter·Goetz S. Uhrig
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Abstract

We calculate the 2-triplon contribution to the dynamic structure factor of the 2-dimensional Shastry-Sutherland model, realized in SrCu2(BO3)2, by means of perturbative continuous unitary transformations. For realistic parameters we find flat bound 2-triplon bands. These bands show large weight in the structure factor depending strongly on momentum. So our findings permit a quantitative understanding of high precision inelastic neutron scattering experiments.

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Christian Knetter, Goetz S. Uhrig. 2004-01-22. Dynamic Structure Factor of the Two-Dimensional Shastry-Sutherland Model. https://doi.org/10.1103/physrevlett.92.027204

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