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arXiv 1802.00587cond-mat.str-elcond-mat.othercond-mat.stat-mech
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1651磁空间群中的Lieb-Schultz-Mattis型填充约束

The Lieb-Schultz-Mattis-type filling constraints in the 1651 magnetic space groups

Haruki Watanabe

摘要:

我们提出了第一个系统的填充约束的研究,以实现一个“平凡”的绝缘体对称下的磁空间群$\mathcal{M}$。填充的$ν$必须是$m^{\mathcal{M}}$的整数倍,以避免在带隙相中的自发对称性破缺或分馏。我们改进了文献中的$m^{\mathcal{M}}$的值,并证明了对大多数磁空间群约束的紧性。这一结果对具有碎裂效应的奇异磁体的材料研究有一定的指导意义。

英文摘要:

We present the first systematic study of the filling constraints to realize a `trivial' insulator symmetric under magnetic space group $\mathcal{M}$. The filling $ν$ must be an integer multiple of $m^{\mathcal{M}}$ to avoid spontaneous symmetry breaking or fractionalization in gapped phases. We improve the value of $m^{\mathcal{M}}$ in the literature and prove the tightness of the constraint for the majority of magnetic space groups. The result may shed light on the material search of exotic magnets with fractionalization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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