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

Abstract

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.

arXiv comment9 pages, 6 figures

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Cited by in corpus (5)

• Colossal magnetoresistance in EuZn${}_2$P${}_2$ and its electronic and magnetic structure
• Electronic band reconstruction across the insulator-metal transition in colossal magnetoresistive EuCd2P2
• Non-collinear 2k antiferromagnetism in the Zintl semiconductor Eu${}_5$In${}_2$Sb${}_6$
• Thermodynamic evidence for polaron stabilization inside the antiferromagnetic order of Eu${}_5$In${}_2$Sb${}_6$
• Magnetocaloric properties of single-crystalline Eu${}_5$In${}_2$Sb${}_6$