Magnetotransport studies of EuFe${}_2$As${}_2$: the influence of the Eu${}^{2+}$ magnetic moments

Abstract

We report resistivity $\rho$ and Hall effect measurements on EuFe${}_2$As${}_2$ at ambient pressure and 28 kbar and magnetization measurements at ambient pressure. We analyze the temperature and magnetic-field dependence of $\rho$ and the Hall effect using a molecular-field theory for magnetoresistance and an empirical formula for the anomalous Hall effect and find that electron scattering due to the Eu${}^{2+}$ local moments plays only a minor role in determining electronic transport properties of EuFe${}_2$As${}_2$.

arXiv commentPublished in J. Phys. Soc. Jpn

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• Phase Diagram of Pressure-Induced Superconductivity in EuFe2As2 Probed by High-Pressure Resistivity up to 3.2 GPa
• Anisotropic superconductivity and magnetism in single-crystal RbEuFe${}_4$As${}_4$
• Doping dependence of the Nernst effect in Eu(Fe1-xCox)2As2 - departure from Dirac fermions physics
• Phase diagram of superconductivity and antiferromagnetism in single crystals of Sr(Fe1-xCox)2As2 and Sr1-yEuy(Fe0.88Co0.12)2As2
• Upper Critical Field of Pressure-Induced Superconductor EuFe${}_2$As${}_2$
• Electronic structure and de Haas-van Alphen frequencies in KFe2As2 within LDA+DMFT
• Fluctuation conductivity and possible pseudogap state in FeAs-based superconductor EuFeAsO(0.85)F(0.15)
• Topological magnetic order and superconductivity in EuRbFe${}_4$As${}_4$
• Electron spin resonance in Eu based Fe pnictides
• Pressure-induced superconductivity in EuFe2As2 without a quantum critical point: magnetotransport and upper critical field measurements under high pressure
• Strongly anisotropic antiferromagnetic coupling in EuFe2As2 revealed by stress detwinning