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arXiv 1407.4795cond-mat.mtrl-scicond-mat.str-el
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强关联诱导的LiVS $_2$中隐藏的自旋轨道六角有序

Hidden spin-orbital hexagonal ordering induced by strong correlations in LiVS$_2$

Lewin Boehnke, Alexander I. Lichtenstein, Mikhail I. Katsnelson, Frank Lechermann

摘要:

我们提出了一个准二维化合物LiVS $_2$的金属相的多轨道晶格磁化率的第一性原理多体分析。我们基于先进的相关电子结构方法的$t_{2g}$壳层揭示了一个高度纠缠的自旋轨道六方有序(SOHO)带来的固有intersite序参量的三聚过渡,这最终导致一个有趣的绝缘相在低温下。

英文摘要:

We present a first-principles many-body analysis of multi-orbital lattice susceptibilities in the metallic phase of the quasi-twodimensional compound LiVS$_2$. We base this on advanced correlated electronic structure methods for the $t_{2g}$-shell to reveal a highly entangled spin-orbital hexagonal ordering (SOHO) bringing about an inherently intersite order parameter for the trimerization transition, which eventually leads to an intriguing insulating phase at low temperature.

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