Nmr evidence for coexistence of superconductivity and ferromagnetic component in magnetic superconductor RuSr2YCu2O8: 99,101Ru and 63Cu NMR.

@article{Tokunaga2001NmrEF,
  title={Nmr evidence for coexistence of superconductivity and ferromagnetic component in magnetic superconductor RuSr2YCu2O8: 99,101Ru and 63Cu NMR.},
  author={Yuuki Tokunaga and Hisashi Kotegawa and Kenji Ishida and Yoshio Kitaoka and H. Takagiwa and Jun Akimitsu},
  journal={Physical review letters},
  year={2001},
  volume={86 25},
  pages={5767-70}
}
From Ru- and Cu-NMR studies, we present evidence for coexistence of superconductivity and ferromagnetism in a cuprate superconductor RuSr2YCu2O8 (RuY1212). The observation of a large enhancement of a radio-frequency field for the Ru-NMR signal at zero field reveals the existence of a ferromagnetic (FM) component in the ordered RuO2 plane below a Curie temperature of TM = 150 K. Just below the onset temperature of superconductivity T(onset)c = 45 K, a remarkable decrease of the nuclear spin… CONTINUE READING

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