Method for analysis of superconducting fluctuation effects by superposition of the longitudinal and Hall conductivities
J. P. Rice, D. M. Ginsberg
DOI 10.1103/PhysRevB.46.12049 · Physical Review B
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Abstract
The terms describing the effects of the Maki-Thompson process on the superconducting fluctuations above Tc have the same temperature dependence in the longitudinal and Hall conductivities. Thus, by an appropriate superposition of these quantities, we define a new quantity, in which the effect of the Maki-Thompson process is canceled, thereby isolating the Aslamazov-Larkin terms. This method can be applied to YBa2Cu3O7−y if one assumes that the Cu-O chains are strictly one-dimensional conductors. Proceeding in this way, we obtain results in good agreement with the Aslamazov-Larkin term. Further analysis indicates, however, disagreement with the Maki-Thompson term.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
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