Is La1.85Y0.15CuO4 an oxygen-doped cuprate superconductor?

W. Yu; B. Liang; P. Li; S. Fujino; T. Murakami; I. Takeuchi; R. L. Greene

Is La1.85Y0.15CuO4 an oxygen-doped cuprate superconductor?

Superconductivity 2007-09-26 v1 Strongly Correlated Electrons

Authors: W. Yu , B. Liang , P. Li , S. Fujino , T. Murakami , I. Takeuchi , R. L. Greene

Abstract

We report resistivity, Hall effect, Nernst effect, and magnetoresistance measurements on T'-phase La1.85Y0.15CuO (LYCO) films prepared by pulsed laser deposition under different oxygen conditions. Our results show that superconductivity in LYCO originates from an oxygen-doped Mott-like insulator and not from a weakly correlated, half-filled band metal as proposed previously.

Keywords

cuprate superconductor oxygen doping Mott insulator T'-phase thin film pulsed laser deposition

Cite

@article{arxiv.cond-mat/0610889,
  title  = {Is La1.85Y0.15CuO4 an oxygen-doped cuprate superconductor?},
  author = {W. Yu and B. Liang and P. Li and S. Fujino and T. Murakami and I. Takeuchi and R. L. Greene},
  journal= {arXiv preprint arXiv:cond-mat/0610889},
  year   = {2007}
}

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