Low-Temperature Normal State Hall Effect in High-$T_{c}$ La$_{2-x}$Sr$_{x}$CuO$_{4}$

ORAL

Abstract

We report Hall effect measurements in the normal state of the high-$T_{c}$ superconductor La$_{2-x}$Sr$_{x}$CuO$_{4}$. The Hall resistivity was measured by suppressing superconductivity in 60T magnetic field, thus revealing the normal-state behavior in the low temperature limit. The carrier concentration is varied from overdoped to underdoped regimes by partially substituting La with Sr in a set of thin film samples. We find a discontinuity in the doping dependence of the Hall coefficient suggestive of a phase transition near optimal doping.

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

–

Authors

  • Fedor Balakirev

    • Los Alamos National Laboratory, Los Alamos, NM 87545, USA

  • Jonathan Betts

    • Los Alamos National Laboratory, Los Alamos, NM 87545, USA

  • Albert Migliori

    • 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, USA