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A V Makhankov1 and V G Makhankov1
Published under licence by IOP Publishing Ltd
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Citation A V Makhankov and V G Makhankov 1990 J. Phys.: Condens. Matter 2 6335
DOI 10.1088/0953-8984/2/29/013
Skrinjar and co-workers (see ibid., vol.1, p.725, 1989) used a Holstein-Primakoff operator method to obtain a classical Hamiltonian. It is shown that the same Hamiltonian can be derived directly via averaging over spin coherent states, so the former contains no extra information in the limit s to infinity .
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