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Infrared Hall effect in high Tc superconductors: Evidence for non-Fermi liquid Hall scattering

J. Cerne·M. Grayson·D. C. Schmadel·G. S. Jenkins·H. D. Drew·R. Hughes·J. S. Preston·P. -J. Kung
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Abstract

Infrared (20-120 cm-1 and 900-1100 cm-1) Faraday rotation and circular dichroism are measured in high Tc superconductors using sensitive polarization modulation techniques. Optimally doped YBCO thin films are studied at temperatures down to 15 K and magnetic fields up to 8 T. At 1000 cm-1 the Hall conductivity varies strongly with temperature in contrast to the longitudinal conductivity which is nearly independent of temperature. The Hall scattering rate has a T^2 temperature dependence but, unlike a Fermi liquid, depends only weakly on frequency. The experiment puts severe constraints on theories of transport in the normal state of high Tc superconductors.

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J. Cerne, M. Grayson, D. C. Schmadel, G. S. Jenkins, H. D. Drew, R. Hughes, J. S. Preston, P. -J. Kung. 1999-08-02. Infrared Hall effect in high Tc superconductors: Evidence for non-Fermi liquid Hall scattering. https://doi.org/10.1103/physrevlett.84.3418

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