2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/96657We discuss the dynamic properties of the square-lattice spin-1/2 XY model obtained using the two-dimensional Jordan-Wigner fermionization approach. We argue the relevancy of the fermionic picture for interpreting the neutron scattering measurements in the two-dimensional frustrated quantum magnet Cs_2CuCl_4.Presented at 12-th Czech and Slovak Conference on Magnetism, Košice, 12-15 July 2004Strongly Correlated Electronstext