Plasmons and high-temperature superconductivity in alloys of copper oxides
J. Ruvalds
DOI 10.1103/PhysRevB.35.8869 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The two-dimensional character of the electronic structure of M-N-Cu-O alloys, with M=La,Y and N=Ba,Sm,..., is shown to favor the formation of ‘‘acoustic’’ plasmons at energies above the acoustic phonons. Providing that the Fermi energy intersects a small pocket of electrons (or holes) in addition to the expected occupation of a primary electron (or hole) band, the plasma oscillations of the secondary charge carriers may provide a mechanism for room-temperature superconductivty.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xBaxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | unknown |
| (Y1-xBax)2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
Similar papers
Enhanced superconductivity in metallic oxides near the metal-insulator transition
similarity 0.96M. S. Osofsky et al.
Source status unknown — claims are unverified
Crystal structure and superconductivity of LaBaCu2O5+x
similarity 0.95Xie Sishen et al.
Source status unknown — claims are unverified
Lattice instability and high-Tc superconductivity in La2−xBaxCuO4
similarity 0.95J. D. Jorgensen et al.
Source status unknown — claims are unverified
Effect of compositional variation and annealing in oxygen on superconducting properties of Y1Ba2Cu3O8−y
similarity 0.95A. J. Panson et al.
Source status unknown — claims are unverified
Effect of nominal composition on the superconductivity in La2CuO4−y
similarity 0.94S. M. Fine et al.
Source status unknown — claims are unverified
Evidence of conventional superconductivity in La-Ba-Cu-O compounds
similarity 0.94W. E. Pickett et al.
Source status unknown — claims are unverified