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Incommensurate spin correlation driven by frustration in BiCu_2PO_6

机译:BiCu_2PO_6中受挫驱动的自旋相关性不当

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摘要

The magnetic properties of BiCu_2PO_6 have been analyzed by means of magnetic-susceptibility and inelastic neutron-scattering measurements on powder samples by evaluating the spin-exchange interactions on the basis of density-functional calculations and by simulating the inelastic neutron scattering in terms of spin-exchange parameters. BiCu_2PO_6 exhibits magnetic properties described by the two-leg spin ladder with strong spin frustration along each leg chain and has a gapped quantum singlet ground state with excited magnetic states, showing an incommensurate dispersion arising from frustration.
机译:BiCu_2PO_6的磁性能已通过对粉末样品的磁化率和非弹性中子散射测量进行了分析,方法是在密度泛函计算的基础上评估自旋交换相互作用,并根据自旋模拟了非弹性中子散射,交换参数。 BiCu_2PO_6的磁性能由两腿自旋阶梯所描述,沿着每条腿链都有很强的自旋受挫力,并且具有带激发磁态的带隙量子单线态基态,显示出受挫导致不均匀的色散。

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  • 来源
    《Physical review》 |2009年第18期|180413.1-180413.4|共4页
  • 作者单位

    UCCS, UMR 8181, Bat. C7, BP 90108, 59655 Villeneuve d'Ascq Cedex, France;

    IMN, UMR 6502, 2 rue de la Houssiniere, BP 32229, 44329 Nantes Cedex 3, France;

    IPCMS, UMR 7504, CNRS-Universite de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France;

    LLB, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France;

    LASIR, UMR 8516, USTL, Bat C5, 59655 Villeneuve d'Ascq Cedex, France;

    Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA;

    Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA;

    Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA;

    LLB, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    quantized spin models; exchange and superexchange interactions;

    机译:量化自旋模型交换和超交换交互;

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