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arXiv · 0902.2190

Normal-state electrical resistivity and superconducting magnetic penetration depth in Eu0.5K0.5Fe2As2

V. A. Gasparov·H. S. Jeevan·P. Gegenwart
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Abstract

We report measurements of the temperature dependence of the electrical resistivity, \rho(T), and magnetic penetration depth, \lambda(T), for polycrystalline samples of Eu_0.5K_0.5Fe_2As_2 with Tc=31 K. $\rho(T)$ follows a linear temperature dependence above T_c and bends over to a weaker temperature dependence around 150 K. The magnetic penetration depth, determined by radio frequency technique displays an unusual minimum around 4 K which is associated with short-range ordering of localized Eu3+ moments.

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V. A. Gasparov, H. S. Jeevan, P. Gegenwart. 2009-02-12. Normal-state electrical resistivity and superconducting magnetic penetration depth in Eu0.5K0.5Fe2As2. https://doi.org/10.1134/s0021364009060071

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