Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-03-04
Physics
Condensed Matter
Strongly Correlated Electrons
7 pages, 6 figures in color, submitted to PRB
Scientific paper
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.
Bonča Janez
Sega Igor
Shawish Samir El
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