arxiv: 0707.3171 · v1 · submitted 2007-07-21 · ❄️ cond-mat.supr-con · cond-mat.str-el

Intrinsic Impurity in the High Temperature Superconductor Bi₂Sr₂CaCu₂O_{8+δ}

Bo Chen , Sutirtha Mukhopadhyay , W. P. Halperin , Prasenjit Guptasarma , D. G. Hinks This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords temperaturecacucuriedeltadopingimpurityintrinsicoxygen

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The {}^{17}O NMR spectra of Bi_2Sr_2CaCu_2O$_{8+\delta}$ (Bi-2212) single crystals were measured in the temperature range from 4 K to 200 K and magnetic fields from 3 to 29 T, reported here principally at 8 T. The NMR linewidth of the oxygen in the CuO_{2} plane was found to be magnetically broadened with the temperature dependence of a Curie law where the Curie coefficient decreases with increased doping. This inhomogeneous magnetism is an impurity effect intrinsic to oxygen doping and persists unmodified into the superconducting state.

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Intrinsic Impurity in the High Temperature Superconductor Bi₂Sr₂CaCu₂O_{8+δ}

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