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Magnetic and electronic properties unveil polaron formation in Eu5In2Sb6

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Ale Crivillero,  M. Victoria
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Rößler,  Sahana
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Wirth,  S.
Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Ale Crivillero, M. V., Rößler, S., Granovsky, S., Doerr, M., Cook, M. S., Rosa, P. F. S., et al. (2023). Magnetic and electronic properties unveil polaron formation in Eu5In2Sb6. Scientific Reports, 13(1): 1597, pp. 1-9. doi:10.1038/s41598-023-28711-z.


Cite as: https://hdl.handle.net/21.11116/0000-000C-A341-2
Abstract
The intermetallic compound Eu5In2Sb6, 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 Eu2 + 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. © 2023, The Author(s).