Second- to first-order transition in two coupled antiferromagnetic rings

P. F. Li (), Y. G. Chen and H. Chen
Authors registered in the RePEc Author Service: Hao Chen ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 51, issue 4, 473-476

Abstract: We numerically investigate an S=1/2 spin model, in which two dimerized antiferromagnetic rings interact with each other ferromagnetically. It is shown that the order of the magnetoelastic transition is strongly affected by the interring coupling J ⊥ and there may exist a critical J ⊥ * dividing the first-order transition and the continuous transition. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 75.10.Jm Quantized spin models; 75.10.Pq Spin chain models; 75.30.Kz Magnetic phase boundaries (including magnetic transitions; metamagnetism; etc.) (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1140/epjb/e2006-00255-1

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