Date of Original Version
The one‐dimensional spin‐s XYZmodel in a magnetic field of particular strength has a ferro‐ or antiferromagnetically ordered product ground state. The recursion method is employed to determine T=0 dynamic structure factors for systems with s=1/2, 1, 3/2. The line shapes and peak positions differ significantly from the corresponding spin‐wave results, but their development for increasing values of s suggests a smooth extrapolation to the spin‐wave picture.
V.S. Viswanath, Joachim Stolze and Gerhard Müller. Dynamical properties of quantum spin systems in magnetically ordered product ground states. J. Appl. Phys. 75 (1994), 6057-6059.
Available at: http://dx.doi.org/10.1063/1.355509