Diamond chains with multiple-spin exchange interactions

N. B.Ivanov; J. Richter; J. Schulenburg

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Diamond chains with multiple-spin exchange interactions

机译：具有多轴交换相互作用的钻石链

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摘要

We study the phase diagram of a symmetric spin-1/2 Heisenberg diamond chain with additional cyclic four-spin exchange interactions. The presented analysis supplemented by numerical exact-diagonalization results for finite periodic clusters implies a rich phase diagram containing, apart from standard magnetic and spin-liquid phases, two different tetramer-dimer phases as well as an exotic fourfold degenerate dimerized phase. The characteristics of the established spin phases as well as the nature of quantum phase transitions are discussed as well.

机译：我们研究了对称的自旋1/2海森堡钻石链与其他循环四自旋交换相互作用的相图。所提出的分析加上有限周期簇的精确对角线化结果的数值表示，除了标准的磁性相和自旋液相外，还包含两个不同的四聚体-二聚体相以及一个奇异的四倍简并二聚体相。还讨论了已建立的自旋相的特征以及量子相变的性质。

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来源
《Physical review》 |2009年第10期|451-456|共6页
作者
N. B.Ivanov; J. Richter; J. Schulenburg;
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作者单位

Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko chaussee 72, 1784 Sofia, Bulgaria;

Institut fuer Theoretische Physik, Universitaet Magdeburg, PF 4120, D-39016 Magdeburg, Germany;

Universitatsrechenzentrum, Universitaet Magdeburg, D-39016 Magdeburg, Germany;

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正文语种 eng
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关键词
spin chain models; magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.); numerical simulation studies;

机译：自旋链模型;磁性相边界（包括磁跃迁;超磁性等）;数值模拟研究;

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2. Ground-State Phase Diagram of the Multiple-Spin Exchange Model with Up to the Six-Spin Exchange Interactions on the Triangular Lattice [J] . Yasuda Chitoshi, Uchihira Yuma, Kubo Kenn, Journal of the Physical Society of Japan . 2018,第10期

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3. Spin and density excitations in the triangular-lattice t-J model with multiple-spin exchange interactions: ~3He on graphite [J] . K. Seki, T. Shirakawa, Y. Ohta Physical review . 2009,第4期

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机译：2D〜3HE膜中多旋交换的调查：NMR研究
5. Processed kimberlite-water interactions in diamond mine waste, Ekati Diamond Mine, Northwest Territories, Canada. [D] . Rollo, Hugh Andrew. 2003

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6. Indirect chiral magnetic exchange through Dzyaloshinskii–Moriya-enhanced RKKY interactions in manganese oxide chains on Ir(100) [O] . Martin Schmitt, Paolo Moras, Gustav Bihlmayer, -1

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7. Diamond chains with multiple-spin exchange interactions [O] . Ivanov, N. B., Richter, J., Schulenburg, J. 2009

机译：具有多自旋交换相互作用的金刚石链

Diamond chains with multiple-spin exchange interactions

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