# An accurate mapping of quantum Heisenberg magnetic models of spin s to strong-coupling magnon systems

@article{Liu1997AnAM, title={An accurate mapping of quantum Heisenberg magnetic models of spin s to strong-coupling magnon systems}, author={Banggui Liu and Gerd Czycholl}, journal={Journal of Physics: Condensed Matter}, year={1997}, volume={9}, pages={5449-5459} }

An infinite-U term is introduced into the Holstein - Primakoff-transformed magnon Hamiltonian of quantum Heisenberg magnetic models of spin s. This term removes the unphysical spin-wave states at every site, and automatically truncates the expansion in powers of the magnon occupation operator. The resultant strong-coupling magnon Hamiltonians are accurately equivalent to the original spin Hamiltonians. The on-site U-levels and their implications are studied. Within a simple decoupling…

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