High Field Hall Effect and Resistivity in High-$T_{c}$ La$_{2-x}$Sr$_{x}$CuO$_{4}$

ORAL

Abstract

Hall effect and resistivity measurements were performed in a set of La$_{2-x}$Sr$_{x}$CuO$_{4}$ thin film samples in magnetic field up to 60T. The Sr doping, x, was varied between 0.08 and 0.22. The resistivity and Hall voltage were measured simultaneously using digital lockin technique developed at NHMFL. We find a pronounced minimum in the doping dependence of the Hall coefficient, suggesting a common phenomenon which is generic for high temperature superconductors. This Hall effect anomaly is most readily associated with a phase transition near optimal doping where superconductivity is most robust.

*The work at the National High Magnetic Field Laboratory was supported by the National Science Foundation and the DOE Office of Science

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Authors

  • F. Balakirev

    • National High Magnetic Field Laboratory, LANL, Los Alamos, NM
    • National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
    • MPA-NHMFL, LANL, Los Alamos, NM 87544

  • Jonathan Betts

    • National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, USA

  • Albert Migliori

    • National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, NM 87545, USA

  • Ichiro Tsukada

    • Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511, Japan

  • Yoichi Ando

    • Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511, Japan

  • Gregory Boebinger

    • National High Magnetic Field Laboratory, Tallahassee, FL 32310