Spin dynamics of Shastry-Sutherland model

Bonca J; El Shawish S; Sega I

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Spin dynamics of Shastry-Sutherland model

机译：Shastry-Sutherland模型的自旋动力学

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We employ finite-temperature Lanczos technique on finite clusters to compute dynamical spin structure factor of Shastry-Sutherland model, which describes quasi-two-dimensional dimer spin-liquid SrCu2(BO3)(2) compound. Unusual temperature dependence of calculated spectra is in agreement with inelastic neutron scattering measurements. Introduction of nonmagnetic impurities leads to the formation of small anisotropic magnetic polarons surrounding impurity sites. Additional peaks due to finite doping appear in the spin structure factor. (c) 2006 Elsevier B.V. All rights reserved.

机译：我们在有限簇上采用有限温度Lanczos技术来计算Shastry-Sutherland模型的动力学自旋结构因子，该模型描述了准二维二聚体自旋液体SrCu2（BO3）（2）化合物。计算光谱的异常温度依赖性与非弹性中子散射测量结果一致。引入非磁性杂质会导致在杂质位点周围形成小的各向异性磁极化子。由于有限掺杂而产生的其他峰出现在自旋结构因子中。（c）2006 Elsevier B.V.保留所有权利。

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《Physica, B. Condensed Matter》 |2006年第2期|共4页
作者
Bonca J; El Shawish S; Sega I;
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正文语种 eng
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关键词
Heisenberg model; Shastry-Sutherland model; spin liquids; neutron scattering; X-BAND ESR; SRCU2(BO3)(2); EXCITATIONS; SYSTEM; STATE;

机译：Heisenberg模型;Shastry-Sutherland模型;自旋液体;中子散射;X波段ESR;SRCU2（BO3）（2）;激发;系统;状态;

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Spin dynamics of Shastry-Sutherland model

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