Infinite coupling magnon theory of quantum Heisenberg magnetic models of spin s

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dc.creatorLiu, Bang-Gui
dc.creatorCzycholl, Gerd
dc.date1997-10-24
dc.date.accessioned2026-07-07T03:09:19Z
dc.date.available2026-07-07T03:09:19Z
dc.descriptionAn infinity magnon coupling term is introduced into the Holstein-Primakoff transformed forms of the Heisenberg ferromagnetic and antiferromagnetic models of any spin $s$ to rigorously remove the unphysical magnon states. This term makes the series expansion of the square root of the magnon operators become a finite series of magnon operator products. Under a simple Hubbard-like approximation our infinite coupling theory yields much better result than the existing spin wave theories, especially near transition temperatures.
dc.descriptionLaTex with two EPS figures included, uses epsfig and espcrc2.sty
dc.identifierhttps://arxiv.org/abs/cond-mat/9710261
dc.identifierhttp://arxiv.org/abs/cond-mat/9710261
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27837
dc.subjectCondensed Matter
dc.titleInfinite coupling magnon theory of quantum Heisenberg magnetic models of spin s
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