Tailoring the Superconductivity and Antiferromagnetic Order in SrFe2-xRhxAs2

Abstract

By doping Rh to the Fe sites in SrFe2As2, superconductivity is induced when the antiferromagnetic (AF) order is suppressed. The maximum superconducting transition temperature was found at about 22 K with the doping level of x = 0.25. It is found that the resistivity anomaly associating with the AF order reveals a sharp drop for the parent phase and the samples with low doping (x = 0.05), while it evolves into an uprising at a higher doping level (x = 0.1). A general phase diagram is depicted which exhibits the similarity with that of Co doping. Regarding the close maximum superconducting transition temperatures in doping Co, Rh and Ir, we argue that the superconductivity is intimately related to the suppression of the AF order, rather than the electron-phonon coupling.

4 pages, 5 figures

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• Superconductivity in SrFe2As2 with Pt Doping
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• Electronic structures of doped BaFe${}_2$As${}_2$ materials: virtual crystal approximation versus super-cell approach
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• Effects of Vanadium doping on BaFe2As2
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• Distinct behaviors of suppression to superconductivity in $LaR{u}_{3}S{i}_2$ induced by Fe and Co dopants
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• Superconductivity in SmFe1-xMxAsO (M = Co, Rh, Ir)
• Doping effects of Cr on the physical properties of BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
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• Magnetically polarized Ir dopant atoms in superconducting Ba(Fe${}_{1-x}$Ir${}_x$)${}_2$As${}_2$
• Uniform chemical pressure effect in solid solutions Ba(1-x)Sr(x)Fe2As2 and Sr(1-x)Ca(x)Fe2As2
• Lattice Parameters Guide Superconductivity in Iron-Arsenides
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• Spin polarization of Ru in superconducting Ba(Fe${}_{0.795}$Ru${}_{0.205}$)${}_2$As${}_2$ studied by x-ray resonant magnetic scattering
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• Miscibility gap and possible intrinsic Griffiths phase in Sr(Fe1-xMnx)2As2 crystals grown by transitional metal arsenide flux
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