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Normal-State Hall Effect and the Insulating Resistivity of High-T_c Cuprates at Low Temperatures

Yoichi Ando·G. S. Boebinger·A. Passner·N. L. Wang·C. Geibel·F. Steglich·I. E. Trofimov·F. F. Balakirev
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Abstract

The normal-state Hall coefficient R_H and the in-plane resistivity ρ_{ab} are measured in La-doped Bi_{2}Sr_{2}CuO_{y} (T_c \simeq 13 K) single crystals and La_{2-x}Sr_{x}CuO_{4} thin films by suppressing superconductivity with 61-T pulsed magnetic fields. In contrast to data above T_c, the R_H below \sim 10 K shows little temperature dependence in all the samples measured, irrespective of whether ρ_{ab} exhibits insulating or metallic behavior. Thus, whatever physical mechanism gives rise to insulating behavior in the low-temperature normal state, it leaves the Hall conductivity relatively unchanged.

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Yoichi Ando, G. S. Boebinger, A. Passner, N. L. Wang, C. Geibel, F. Steglich, I. E. Trofimov, F. F. Balakirev. 1997-10-15. Normal-State Hall Effect and the Insulating Resistivity of High-T_c Cuprates at Low Temperatures. https://doi.org/10.1103/physrevb.56.r8530

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