The AC hall effect in YBCO: Temperature and frequency dependence of hall scattering

J. Černe, M. Grayson, B. C. Schmadel, J. Simpson, H. D. Drew*, R. Hughes, J. S. Preston, P. J. Kung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We measure the Hall angle, θH, in YBCO films in the far- and mid-infrared to determine the temperature T and frequency ω dependence of the Hall scattering. Using novel polarization modulation techniques we measure both the Faraday rotation and ellipticity induced by these films in high magnetic fields to deduce the complex conductivity tensor. We observe a strong temperature dependence of the Hall conductivity in sharp contrast to the weak dependence of the longitudinal conductivity. By fitting the frequency-dependent normal state Hall angle to a Lorentzian θH(ω) = ωH/(γH - iω) we find the Hall frequency, ωH, is nearly independent of temperature. The Hall scattering rate, γH, is consistent with γH ≈ T2 and is remarkably independent of IR frequency suggesting non-Fermi liquid behavior.

Original languageEnglish (US)
Pages (from-to)941-942
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART I
DOIs
StatePublished - 2000

Keywords

  • Anomalous Hall effect
  • Far infrared
  • Hall effect
  • Infrared reflectivity
  • Non-Fermi liquids
  • Optical conductivity
  • YBaCuO films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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