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

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

2006-10-31

arxiv.org/abs/cond-mat/0610889v1

Phys. Rev. B 75, 020503 (2007)

Physics

Condensed Matter

Superconductivity

Scientific paper

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.

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