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A two-leg spin ladder model for fumarate-bridged chain-like polymer of Cu(II)

机译:富马酸酯桥联的Cu(II)链状聚合物的两腿自旋阶梯模型

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In this paper, the transfer matrix renormalization group method is used to study the thermodynamic and the magnetic properties of a novel one-dimensional furnarate-bridged CU(II) chain by a two kinds of models. One simplified model is that of the dominant ferromagnetic and antiferromagnetic alternating chain, which is only in rough agreement with the experimental results. Further research shows a possible mechanism of alternating strong ferromagnetic and weak antiferromagnetic interaction among one chain. Considering the weak antiferromagnetic interaction existing in the actual materials, we propose a two-leg spin ladder model with intrachain ferromagnetic and weak interchain anti ferro magnetic interaction. The obtained theoretical results are in quite good agreement with experimental curves, which indicates the two-leg spill ladder model is appropriate to describe the fumarate-bridged chain-like polymer of Cu(II). (C) 2004 Elsevier Ltd. All rights reserved.
机译:本文采用传递矩阵重整化群方法,通过两种模型研究了新型一维呋喃桥联的CU(II)链的热力学和磁性。一种简化的模型是主要的铁磁和反铁磁交替链的模型,这仅与实验结果大致一致。进一步的研究表明,一条链之间交替交替发生强铁磁和弱铁磁相互作用的可能机制。考虑到实际材料中存在的弱反铁磁相互作用,我们提出了具有链内铁磁和弱链间反铁磁相互作用的两腿自旋阶梯模型。获得的理论结果与实验曲线非常吻合,表明两腿溢油阶梯模型适合描述富马酸酯桥连的Cu(II)链状聚合物。 (C)2004 Elsevier Ltd.保留所有权利。

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