Electron-hole asymmetry and superconductivity
J. E. Hirsch
DOI 10.1103/PhysRevB.68.012510 · Physical Review B
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Abstract
In a solid, transport of electricity can occur via electrons or via holes. In the normal state of a metal experiments do not reveal whether the elementary mobile carriers have positive or negative charge. This is no longer true in the superconducting state: certain measurable properties of superconductors reveal that the superfluid carriers have negative charge. This indicates that electron-hole asymmetry plays a fundamental role in superconductivity, as proposed by the theory of hole superconductivity.
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. | — | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Hg Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| BaPb1-xBixO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 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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