Condensation energy of the homogeneous electron gas from density-functional theory for superconductors
M. Wierzbowska, J. W. Krogh
DOI 10.1103/PhysRevB.71.014509 · Physical Review B
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Abstract
The condensation energy of homogeneous electron gas is calculated within the density-functional theory for superconductors. Purely electronic considerations include the exchange energy exactly and the correlation energy on a level of the random phase approximation. Singlet superconductivity is assumed, and the Coulomb interaction is studied with a model pairing potential at angular momentum up to l=9 and densities 1⩽rs⩽10. The homogeneous gas remains nonsuperconducting up to rs≃9. A very weak negative value of the condensation energy has been found for f waves and higher-l pairing at rs=10.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 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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