Extraordinary Hall effect in YBa2Cu3O7−δ superconductors
A. T. Fiory, G. S. Grader
DOI 10.1103/PhysRevB.38.9198 · Physical Review B
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Abstract
The paramagneticlike T−1 temperature dependence of the Hall coefficient RH and the linear-T resistivity ρ are shown to be obeyed in the oxygen-deficient metallic phases of the YBa2Cu3O7−δ superconductor at elevated temperatures, a region of oxygen stoichiometry 0.03≲δ(T)≲0.6, as revealed by a universal RHT vs ρT dependence. The similarly temperature-scaled Hall angle increases upon oxygen desorption and has a maximum near δ≈0.2. These results suggest that asymmetric magnetic scattering may contribute significantly to the Hall effect in YBa2Cu3O7.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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