Spectral Measurement of the Hall Angle Response in Normal State Cuprate Superconductors

M. Grayson; L. B. Rigal; D. C. Schmadel; H. D. Drew; P.-J. Kung

doi:10.1103/PhysRevLett.89.037003

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Spectral Measurement of the Hall Angle Response in Normal State Cuprate Superconductors

M. Grayson, L. B. Rigal, D. C. Schmadel, H. D. Drew, P.-J. Kung

DOI 10.1103/PhysRevLett.89.037003 · Physical Review Letters

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Abstract

We measure the temperature and frequency dependence of the complex Hall angle for normal state YBa2Cu3O7 films from dc to far-infrared frequencies (20–250cm−1) using a new modulated polarization technique. We determine that the functional dependence of the Hall angle on scattering does not fit the expected Lorentzian response. We find spectral evidence supporting models of the Hall effect where the scattering ΓH is linear in T, suggesting that a single relaxation rate, linear in temperature, governs transport in the cuprates.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown