Inhomogeneity and transverse voltage in superconductors
A. Segal, M. Karpovski, A. Gerber
DOI 10.1103/PhysRevB.83.094531 · Physical Review B
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Abstract
Voltages parallel and transverse to electric current in slightly inhomogeneous superconductors can contain components proportional to the field and temperature derivatives of the longitudinal and Hall resistivities. We show that these anomalous contributions can be the origin of the zero field and even-in-field transverse voltage occasionally observed at the superconductor-to-normal-state transition. The same mechanism can also cause an anomaly in the odd-in-field transverse voltage, interfering with the Hall-effect signal.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure unresolved | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure unresolved | onset |
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