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arXiv · 1704.05195

Complementary response of static spin-stripe order and superconductivity to non-magnetic impurities in cuprates

Z. Guguchia·B. Roessli·R. Khasanov·A. Amato·E. Pomjakushina·K. Conder·Y. J. Uemura·J. M. Tranquada·H. Keller·A. Shengelaya
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Abstract

We report muon-spin rotation and neutron-scattering experiments on non-magnetic Zn impurity effects on the static spin-stripe order and superconductivity of the La214 cuprates. Remarkably, it was found that, for samples with hole doping x = 1/8, the spin-stripe ordering temperature T_so decreases linearly with Zn doping y and disappears at around y = 4\%, demonstrating a high sensitivity of static spin-stripe order to impurities within a CuO_2 plane. Moreover, T_so is suppressed by Zn in the same manner as is the superconducting transition temperature T_c for samples near optimal hole doping. This surprisingly similar sensitivity suggests that the spin-stripe order is dependent on intertwining with superconducting correlations.

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Z. Guguchia, B. Roessli, R. Khasanov, A. Amato, E. Pomjakushina, K. Conder, Y. J. Uemura, J. M. Tranquada, H. Keller, A. Shengelaya. 2017-08-27. Complementary response of static spin-stripe order and superconductivity to non-magnetic impurities in cuprates. https://doi.org/10.1103/physrevlett.119.087002

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