Antiferromagnetic transition in EuFe$_2$As$_2$: A possible parent compound for superconductors

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dc.creatorRen, Zhi
dc.creatorZhu, Zengwei
dc.creatorJiang, Shuai
dc.creatorXu, Xiangfan
dc.creatorTao, Qian
dc.creatorWang, Cao
dc.creatorFeng, Chunmu
dc.creatorCao, Guanghan
dc.creatorXu, Zhu'an
dc.date2008-06-16
dc.date2008-08-14
dc.date.accessioned2026-07-07T09:56:21Z
dc.date.available2026-07-07T09:56:21Z
dc.descriptionTernary iron arsenide EuFe$_2$As$_2$ with ThCr$_2$Si$_2$-type structure has been studied by magnetic susceptibility, resistivity, thermopower, Hall and specific heat measurements. The compound undergoes two magnetic phase transitions at about 200 K and 20 K, respectively. The former was found to be accompanied with a slight drop in magnetic susceptibility (after subtracting the Curie-Weiss paramagnetic contribution), a rapid decrease in resistivity, a large jump in thermopower and a sharp peak in specific heat with decreasing temperature, all of which point to a spin-density-wave-like antiferromagnetic transition. The latter was proposed to be associated with an A-type antiferromagnetic ordering of Eu$^{2+}$ moments. Comparing with the physical properties of the iso-structural compounds BaFe$_2$As$_2$ and SrFe$_2$As$_2$, we expect that superconductivity could be induced in EuFe$_2$As$_2$ through appropriate doping.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0806.2591
dc.identifierhttp://arxiv.org/abs/0806.2591
dc.identifierPHYSICAL REVIEW B 78, 052501 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.052501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166951
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleAntiferromagnetic transition in EuFe$_2$As$_2$: A possible parent compound for superconductors
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