The Mixed Spin S=(1/2,1) XXZ Ferrimagnet at Zero Temperature
arXiv:cond-mat/0301580
Abstract
Linked cluster series expansions about the Ising limit are used to study ground state preperties, viz. ground state energy, magnetization and excitation spectra, for mixed spin S=(1/2,1) quantum ferrimagnets on simple bipartite lattices in 1, 2, and 3-dimensions. Results are compared to second-order spin wave theory and, in general, excellent agreement is obtained.
5 figures, 12 pages, revtex