Reentrant softening in perovskitelike superconductors
T. Datta, H. M. Ledbetter, C. E. Violet, C. Almasan, J. Estrada
DOI 10.1103/PhysRevB.37.7502 · 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
We suggest a model—reentrant elastic softening—that achieves three useful results. First, and principally, it reconciles existing sound-velocity–elastic-constant measurements with thermodynamics. Second, it leads to Debye characteristic temperatures that agree with those from specific-heat and phonon density-of-states determinations. Third, it links elastic-constant–temperature behavior in Y-Ba-Cu-O and La-Sr-Cu-O. The model predicts a superconducting-state elastic stiffness lower than the normal state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Intergrain flux creep in high-Tc superconductors
similarity 0.96Jaakko Paasi & Jarl-Thure Eriksson
Source status unknown — claims are unverified
Thermodynamic fluctuations in the high-Tc perovskite superconductors
similarity 0.96Aharon Kapitulnik et al.
Source status unknown — claims are unverified
Temperature dependence of spin-polarized transport in ferromagnet/unconventional superconductor junctions
similarity 0.95T. Hirai et al.
Source status unknown — claims are unverified
Transverse thermomagnetic effects in the mixed state and lower critical field of high-Tc superconductors
similarity 0.95Mark W. Coffey
Source status unknown — claims are unverified
Long-range Coulomb interactions and the onset of superconductivity in the high-Tc materials
similarity 0.95S. Doniach & M. Inui
Source status unknown — claims are unverified
Thermal fluctuations of vortex lines, pinning, and creep in high-Tc superconductors
similarity 0.95M. V. Feigel’man & V. M. Vinokur
Source status unknown — claims are unverified