Measurement of the complex Faraday angle in thin-film metals and high temperature superconductors

Abstract

A sensitive polarization modulation technique uses photoelastic modulation and hetrodyne detection to simultaneously measure the Faraday rotation and induced ellipticity in light transmitted by semiconducting and metallic samples. The frequencies measured are in the mid-infrared and correspond to the spectral lines of a CO2 laser. The measured temperature range is continuous and extends from 35 to 330K. Measured samples include GaAs and Si substrates, gold and copper films, and YBCO and BSCCO high temperature superconductors.

12 pages of text, 6 figures, fixed typos in formulas, added figure

References in corpus (6)

• Vanishing of phase coherence in underdoped Bi_2Sr_2CaCu_2O_8+d
• Quasiparticles in the superconducting state of Bi2Sr2CaCu2O8
• Sum rule for the optical Hall angle
• Infrared Hall effect in high Tc superconductors: Evidence for non-Fermi liquid Hall scattering
• Spectral measurement of the Hall angle response in normal state cuprate superconductors
• Mid-infrared Hall effect in thin-film metals: Probing the Fermi surface anisotropy in Au and Cu

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