Dynamic Spin Structure Factor of SrCu2(BO3)2 at Finite Temperatures

S. El Shawish; J. Bonca; I. Sega

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arXiv · cond-mat/0503098

Dynamic Spin Structure Factor of SrCu2(BO3)2 at Finite Temperatures

S. El Shawish·J. Bonca·I. Sega

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Abstract

Using finite temperature Lanczos technique on finite clusters we calculate dynamical spin structure factor of the quasi-two-dimensional dimer spin liquid SrCu2(BO3)2 as a function of wavevector and temperature. Unusual temperature dependence of calculated spectra is in agreement with inelastic neutron scattering measurements. Normalized peak intensities of the single-triplet peak are q-independent, their unusual temperature dependence is analyzed in terms of thermodynamic quantities.

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S. El Shawish, J. Bonca, I. Sega. 2005-06-13. Dynamic Spin Structure Factor of SrCu2(BO3)2 at Finite Temperatures. https://arxiv.org/abs/cond-mat/0503098

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