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arXiv 2302.06324cond-mat.mtrl-scicond-mat.str-el
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Eu $_5$ In $_2$ Sb $_6$的磁性和电子性质

Magnetic and electronic properties of Eu$_5$In$_2$Sb$_6$

M. Victoria Ale Crivillero, Sahana Rößler, S. Granovsky, M. Doerr, M. S. Cook, Priscila F. S. Rosa, J. Müller, S. Wirth

摘要:

对具有非对称晶体结构的金属间化合物Eu $_5$ In $_2$ Sb $_6$进行了磁性、电子输运和比热测量。作为Zintl相,绝缘行为是预期的。我们的热力学和磁输运测量沿不同的晶体学方向强烈表明极化子的形成远远高于磁有序温度。显著的各向异性的磁性和运输性能,即使在磁有序温度以上的观察,尽管Eu $^{2+}$配置,证明这些离子之间的复杂和竞争的磁相互作用,并产生复杂的相图详细讨论。我们的研究结果提供了一个全面的框架,进一步详细研究这种多方面的化合物可能的非平凡拓扑结构。

英文摘要:

The intermetallic compound Eu$_5$In$_2$Sb$_6$, an antiferromagnetic material with nonsymmorphic crystalline structure, is investigated by magnetic, electronic transport and specific heat measurements. Being a Zintl phase, insulating behavior is expected. Our thermodynamic and magnetotransport measurements along different crystallographic directions strongly indicate polaron formation well above the magnetic ordering temperatures. Pronounced anisotropies of the magnetic and transport properties even above the magnetic ordering temperature are observed despite the Eu$^{2+}$ configuration which testify to complex and competing magnetic interactions between these ions and give rise to intricate phase diagrams discussed in detail. Our results provide a comprehensive framework for further detailed study of this multifaceted compound with possible nontrivial topology.

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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