EuRu 2As 2: A new ferromagnetic metal with collapsed ThCr 2Si 2-type structure

W. H. Jiao; I. Felner; I. Nowik; G. H. Cao

doi:10.1007/s10948-011-1287-1

EuRu ₂As ₂: A new ferromagnetic metal with collapsed ThCr ₂Si ₂-type structure

W. H. Jiao, I. Felner^*, I. Nowik, G. H. Cao

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

EuRu ₂As ₂ was characterized by structural, resistivity, magnetization and Mössbauer measurements. It crystallizes in collapsed ThCr ₂Si ₂-type structure with c/a = 2.58 and space group I4/mmm. The temperature and field dependences of magnetization indicate that the material is ferromagnetically ordered at T _C = 17.3 ± 0.5 K, where the electrical resistivity shows a kink. Mössbauer spectroscopy studies determine that the Eu ²⁺ moments align basically along the crystallographic c-axis, which is in contrast to the case in EuFe ₂As ₂ in which the Eu ²⁺ spins lie in the basal planes.

Original language	English
Pages (from-to)	441-445
Number of pages	5
Journal	Journal of Superconductivity and Novel Magnetism
Volume	25
Issue number	2
DOIs	https://doi.org/10.1007/s10948-011-1287-1
State	Published - Feb 2012

Keywords

Crystal structure
Ferromagnetism
Mössbauer spectroscopy

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10.1007/s10948-011-1287-1

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title = "EuRu 2As 2: A new ferromagnetic metal with collapsed ThCr 2Si 2-type structure",

abstract = "EuRu 2As 2 was characterized by structural, resistivity, magnetization and M{\"o}ssbauer measurements. It crystallizes in collapsed ThCr 2Si 2-type structure with c/a = 2.58 and space group I4/mmm. The temperature and field dependences of magnetization indicate that the material is ferromagnetically ordered at T C = 17.3 ± 0.5 K, where the electrical resistivity shows a kink. M{\"o}ssbauer spectroscopy studies determine that the Eu 2+ moments align basically along the crystallographic c-axis, which is in contrast to the case in EuFe 2As 2 in which the Eu 2+ spins lie in the basal planes.",

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T2 - A new ferromagnetic metal with collapsed ThCr 2Si 2-type structure

AU - Jiao, W. H.

AU - Felner, I.

AU - Nowik, I.

AU - Cao, G. H.

PY - 2012/2

Y1 - 2012/2

N2 - EuRu 2As 2 was characterized by structural, resistivity, magnetization and Mössbauer measurements. It crystallizes in collapsed ThCr 2Si 2-type structure with c/a = 2.58 and space group I4/mmm. The temperature and field dependences of magnetization indicate that the material is ferromagnetically ordered at T C = 17.3 ± 0.5 K, where the electrical resistivity shows a kink. Mössbauer spectroscopy studies determine that the Eu 2+ moments align basically along the crystallographic c-axis, which is in contrast to the case in EuFe 2As 2 in which the Eu 2+ spins lie in the basal planes.

AB - EuRu 2As 2 was characterized by structural, resistivity, magnetization and Mössbauer measurements. It crystallizes in collapsed ThCr 2Si 2-type structure with c/a = 2.58 and space group I4/mmm. The temperature and field dependences of magnetization indicate that the material is ferromagnetically ordered at T C = 17.3 ± 0.5 K, where the electrical resistivity shows a kink. Mössbauer spectroscopy studies determine that the Eu 2+ moments align basically along the crystallographic c-axis, which is in contrast to the case in EuFe 2As 2 in which the Eu 2+ spins lie in the basal planes.

KW - Crystal structure

KW - Ferromagnetism

KW - Mössbauer spectroscopy

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JF - Journal of Superconductivity and Novel Magnetism

IS - 2

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EuRu ₂As ₂: A new ferromagnetic metal with collapsed ThCr ₂Si ₂-type structure

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