Quantum and classical spin dynamics across temperature scales in the S=1/2 Heisenberg antiferromagnet
Using the framework of semiclassical Landau-Lifshitz junk headbands phillies dynamics (LLD), we conduct a systematic investigation of the temperature-dependent spin dynamics in the S=1/2 Heisenberg square-lattice antiferromagnet (SAFM).By performing inelastic neutron scattering measurements on Zn_{2}VO(PO_{4})_{2} (ZVPO) and corresponding finite-te