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[Untitled]

Authors :
H. D. Drew
Schmadel Donald C
Matthew Grayson
J. Cerne
L. Vale
John S. Preston
R. Hughes
P. J. Kung
Source :
Journal of Low Temperature Physics. 117:1055-1058
Publication Year :
1999
Publisher :
Springer Science and Business Media LLC, 1999.

Abstract

We measure the Hall angle, θ H , in YBCO films in the far- and mid-infrared to determine the temperature and frequency dependence of the Hall scattering. Using novel 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 mid-infrared 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 θ H (ω) = ω H /(γ H − iω) we find the Hall frequency, ω H , is nearly independent of temperature. The Hall scattering rate, γ H , is consistent with γ H ≈ T 2 up to 200 K and is remarkably independent of IR frequency suggesting non-Fermi liquid behavior.

Details

ISSN :
00222291
Volume :
117
Database :
OpenAIRE
Journal :
Journal of Low Temperature Physics
Accession number :
edsair.doi...........05f10dbf8f1be86b52226bfe1482d24c
Full Text :
https://doi.org/10.1023/a:1022522323029