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首页> 外文期刊>Journal of Physics. Condensed Matter >Phase diagram of the Shastry-Sutherland Kondo lattice model with classical localized spins: a variational calculation study
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Phase diagram of the Shastry-Sutherland Kondo lattice model with classical localized spins: a variational calculation study

机译:具有经典局部旋转的Shastry-Sutherland Kondo格子模型的相图:变分的计算研究

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摘要

We study the Shastry-Sutherland Kondo lattice model with additional Dzyaloshinskii-Moriya (DM) interactions, exploring the possible magnetic phases in its multi-dimensional parameter space. Treating the local moments as classical spins and using a variational ansatz, we identify the parameter ranges over which various common magnetic orderings are potentially stabilized. Our results reveal that the competing interactions result in a heightened susceptibility towards a wide range of spin configurations including longitudinal ferromagnetic and antiferromagnetic order, coplanar flux configurations and most interestingly, multiple non-coplanar configurations including a novel canted-flux state as the different Hamiltonian parameters like electron density, interaction strengths and degree of frustration are varied. The non-coplanar and non-collinear magnetic ordering of localized spins behave like emergent electromagnetic fields and drive unusual transport and electronic phenomena.
机译:我们使用额外的Dzyaloshinskii-Moriya(DM)相互作用来研究Shastry-Sutherland Kondo格子模型,在其多维参数空间中探讨了可能的磁阶段。 将局部瞬间视为古典旋转并使用变形砧座,我们识别各种常见磁性排序可能稳定的参数范围。 我们的结果表明,竞争相互作用导致朝向各种旋转配置的易感性,包括纵向铁磁和反铁磁阶,共面通量配置和最有趣的,多种非共同组成,包括新颖的倾斜通量状态作为不同的哈密顿参数 像电子密度,相互作用强度和挫折程度一样多变。 局部旋转的非共面和非共线磁性顺序表现出紧急电磁场,并驱动不寻常的运输和电子现象。

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